A stereolithography method is provided for the production of a three-dimensional object through the superimposition of layers. The method includes: application of a base substance to a supporting surface belonging to a first laminar element and to a second laminar element; selective irradiation of a layer with a predefined thickness of the base substance in contact with the supporting surface in such a way as to obtain a solidified layer; separation of the solidified layer from the supporting surface through a movement intended to move them away from each other. The application of the base substance is carried out by depositing a single layer with thickness at least corresponding to the predefined thickness so that it comes into contact with the second laminar element at least in the areas corresponding to the volume of the three-dimensional object to be obtained.
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
Resins for 3D printers; resins for stereolithography; liquid
photosensitive resin for the fabrication of
three-dimensional models; acrylic resins; polymer resins,
unprocessed; unprocessed synthetic resins for use in the
manufacture of molding compounds; unprocessed synthetic
resins for use in the manufacture of plastic molding
compounds. 3D printing machines; 3D bioprinters; machines for
stereolithography; UV printing machines. Computer software for 3D printing; stereolithography
software; downloadable computer software for designing and
modelling of three dimensional printable products; 3D
printer monitoring software.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Resins for 3D printers; resins for stereolithography; liquid
photosensitive resin for the fabrication of
three-dimensional models; acrylic resins; polymer resins,
unprocessed; unprocessed synthetic resins for use in the
manufacture of molding compounds; unprocessed synthetic
resins for use in the manufacture of plastic molding
compounds. Dental resins. 3D printing machines; 3D bioprinters; machines for
stereolithography; UV printing machines. Computer software for 3D printing; stereolithography
software; downloadable computer software for designing and
modelling of three dimensional printable products; 3D
printer monitoring software. Industrial ovens; furnaces for industrial use; thermal
treatment furnaces; industrial cooking ovens; industrial
heating furnaces; automatic hardening furnaces for
components; continuous furnaces for tempering lacquers;
electrical hardening ovens for dental purposes; carbonizing
furnaces [for industrial purposes]; industrial heating
furnaces; continuous furnaces for tempering adhesives;
curing lamps, not for medical purposes. Photosensitive resins and polymer resins; plastic filaments
for 3D printing; synthetic resins, semi-processed; synthetic
resins, semi-processed; acrylic resins, semi-processed;
thermosetting resins [semi-processed]; semi-worked polymer
resins; semi-processed thermoplastic polymer resins for use
in manufacture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
Goods & Services
(1) Resins for 3D printers; resins for stereolithography; liquid photosensitive resin for the fabrication of three-dimensional models; acrylic resins; polymer resins, unprocessed; unprocessed synthetic resins for use in the manufacture of molding compounds; unprocessed synthetic resins for use in the manufacture of plastic molding compounds.
(2) Dental resins.
(3) 3D printing machines; 3D bioprinters; machines for stereolithography; UV printing machines.
(4) Computer software for 3D printing; stereolithography software; downloadable computer software for designing and modelling of three dimensional printable products; 3D printer monitoring software.
(5) Industrial ovens; furnaces for industrial use; thermal treatment furnaces; industrial cooking ovens; industrial heating furnaces; automatic hardening furnaces for components; continuous furnaces for tempering lacquers; electrical hardening ovens for dental purposes; carbonizing furnaces [for industrial purposes]; industrial heating furnaces; continuous furnaces for tempering adhesives; curing lamps, not for medical purposes.
(6) Photosensitive resins and polymer resins; plastic filaments for 3D printing; synthetic resins, semi-processed; synthetic resins, semi-processed; acrylic resins, semi-processed; thermosetting resins [semi-processed]; semi-worked polymer resins; semi-processed thermoplastic polymer resins for use in manufacture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Resins for 3D printers; resins for stereolithography; liquid photosensitive resin for the fabrication of three-dimensional models; acrylic resins; polymer resins, unprocessed; unprocessed synthetic resins for use in the manufacture of molding compounds; unprocessed synthetic resins for use in the manufacture of plastic molding compounds. Dental resins. 3D printing machines; 3D bioprinters; machines for stereolithography; UV printing machines. Computer software for 3D printing; stereolithography software; downloadable computer software for designing and modelling of three dimensional printable products; 3D printer monitoring software. Industrial ovens; furnaces for industrial use; thermal treatment furnaces; industrial cooking ovens; industrial heating furnaces; automatic hardening furnaces for components; continuous furnaces for tempering lacquers; electrical hardening ovens for dental purposes; carbonizing furnaces [for industrial purposes]; industrial heating furnaces; continuous furnaces for tempering adhesives; curing lamps, not for medical purposes. Photosensitive resins and polymer resins; plastic filaments for 3D printing; synthetic resins, semi-processed; synthetic resins, semi-processed; acrylic resins, semi-processed; thermosetting resins [semi-processed]; semi-worked polymer resins; semi-processed thermoplastic polymer resins for use in manufacture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
Resins for 3D printers; resins for stereolithography; liquid photosensitive resin for the fabrication of three-dimensional models; acrylic resins; polymer resins, unprocessed; unprocessed synthetic resins for use in the manufacture of molding compounds; unprocessed synthetic resins for use in the manufacture of plastic molding compounds. 3D printing machines; 3D bioprinters; machines for stereolithography; UV printing machines. Computer software for 3D printing; stereolithography software; downloadable computer software for designing and modelling of three dimensional printable products; 3D printer monitoring software.
9.
DEVICE AND METHOD FOR PRODUCING A THREE-DIMENSIONAL LAYERED OBJECT
The method for producing a three-dimensional layered object comprising the steps of: depositing, onto a support plane of a cooled platform, a first liquid which solidifies forming a first containing layer H1; depositing, onto the first containing layer H1, a second liquid which solidifies forming a first structural layer G2 of the three-dimensional object; the structural layer G2 is deposited in an area that has contours corresponding to the contours of a first section of the digital model of the three-dimensional object; forming a second containing layer H2 which completely surrounds the structural layer G2 in the directions X and Y; repeating the previous steps for all sections n of the three-dimensional model, thus producing an object formed by n superimposed structural layers G2, G3, . . . Gi, . . . Gn which is incorporated at the bottom and on the sides along the directions X and Y by n+1 containing layers H1, H2, . . . Hi, . . . Hn+1; melting the containing layers, hence freeing the three-dimensional layered object thus formed.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
Resins for 3D printers; Resins for stereolithography; Liquid photosensitive resin for the fabrication of three-dimensional models; Acrylic resins; Polymer resins, unprocessed; Unprocessed synthetic resins for use in the manufacture of molding compounds; Unprocessed synthetic resins for use in the manufacture of plastic molding compounds. 3D printing machines, 3D bioprinters; Machines for stereolithography; UV printing machines. Computer software for 3D printing; Stereolithography software; Downloadable computer software for designing and modelling of three dimensional printable products; 3D printer monitoring software.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Resins for 3D printers; Resins for stereolithography; Liquid photosensitive resin for the fabrication of three-dimensional models; Acrylic resins; Polymer resins, unprocessed; Unprocessed synthetic resins for use in the manufacture of molding compounds; Unprocessed synthetic resins for use in the manufacture of plastic molding compounds. Dental resins. 3D printing machines, 3D bioprinters; Machines for stereolithography; UV printing machines. Computer software for 3D printing; Stereolithography software; Downloadable computer software for designing and modelling of three dimensional printable products; 3D printer monitoring software. Industrial ovens; Furnaces for industrial use; Thermal treatment furnaces; Industrial cooking ovens; Industrial heating furnaces; Automatic hardening furnaces for components; Continuous furnaces for tempering lacquers; Continuous furnaces for tempering lacquers; Electrical hardening ovens for dental purposes; Carbonizing furnaces [for industrial purposes]; Industrial heating furnaces; Continuous furnaces for tempering adhesives; Curing lamps, not for medical purposes. photosensitive resins and Polymer resins; Plastic filaments for 3D printing; Synthetic resins, semi-processed; Synthetic resins, semi-processed; Acrylic resins, semi-processed; Thermosetting resins [semi-processed]; Semi-worked polymer resins; Semi-processed thermoplastic polymer resins for use in manufacture.
13.
IMPROVED STEREOLITHOGRAPHY MACHINE AND OPERATION METHOD THEREOF
A stereolithography machine (1) comprising: a tank (4); a source (5) of electromagnetic radiation adapted to selectively irradiate the tank (4); a modelling platform (6), which is carried in a mobile manner along a first reference axis (A) orthogonal to the bottom (8) of the tank (4); a multifunction assembly (23) provided at least with levelling means (22), which are adapted to level the fluid substance in said tank (4), equipped with an oblong paddle (27), which extends along a second reference axis (B) orthogonal to the first reference axis (A) and is carried in a movable manner along a direction (di) orthogonal to the first reference axis (A) and the second reference axis (B), and wherein the paddle (27) is pivotally carried about a rotation axis (C) parallel to the second reference axis (B).
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
System for stereolithographic printing comprising a support structure which defines a reference plane on which a three-dimensional object is formed starting from at least one material sensitive to the basic radiation adapted to be solidified when irradiated by a radiation, means for generating such radiation in the direction of such reference plane, a modelling plate which supports and to which the three-dimensional object being formed is constrained, which is able to move the solidified layer according to a direction substantially perpendicular to such plane, so as to allow the last solidified layer of the object to be arranged in a position adjacent to said plane, means for forming at least one layer of such radiation-sensitive material on such reference plane including at least a portion of a film that can be moved on said plane from one end to the other of said plane and a first feeder of a first radiation-sensitive material on said portion of film. Such forming means comprise at least a first pair of substantially vertically mobile barriers each arranged in proximity to one of these ends of the plane, the distance between these elements determining the width of the reference plane and such modelling plate moving substantially vertically between the mobile barriers. Such forming means comprise, externally to the mobile barriers with respect to the plane, a pair of scrapers which strike the film with their tip and such barriers being movable at least between a first raised position at a height predetermined by the film and a second position in which the lower edge of the barrier is in contact with the film itself. Such film is translatable from one end to the other of said plane in both directions. Such first feeder of such first material on the film is placed in proximity to one of the two barriers, in the space between it and the respective scraper.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A system for manufacturing a dental prosthesis includes: a computer with tooth optical property data, which combines the data with a layered numerical representation of the dental prosthesis to link numerical optical properties values representative of the tooth optical properties to each layer; and a computer-controlled stereolithography machine including: a container containing a light sensitive liquid substance; a first tank containing a first light sensitive material; a second tank containing a modifier material having optical properties different from the first light sensitive material; a feeding device for delivering the first light sensitive material and/or of the modifier materials toward the container; and an irradiation device for selective solidification of the light sensitive liquid substance. The computer controls the feeding device based on the optical property values of the layer(s) of the layered numerical representation, to adjust the composition of the liquid substance in the container to the tooth optical properties.
The method for producing a three-dimensional layered object (T) comprising the steps of: depositing, onto a support plane (3) of a cooled platform, a first liquid (9) which solidifies (3) forming a first containing layer H1; depositing, onto the first containing layer H1, a second liquid (11) which solidifies forming a first structural layer G2 of the three-dimensional object; the structural layer G2 is deposited in an area that has contours corresponding to the contours of a first section of the digital model of the three-dimensional object; forming a second containing layer H2 which completely surrounds the structural layer G2 in the directions X and Y; repeating the previous steps for all sections n of the three-dimensional model, thus producing an object formed by n superimposed structural layers G2, G3,...Gi,... Gn which is incorporated at the bottom and on the sides along the directions X and Y by n+1 containing layers H1, H2,...Hi,... Hn+1; melting the containing layers, hence freeing the three-dimensional layered object thus formed.
System for stereolithographic printing comprising a support structure which defines a reference plane on which a three-dimensional object is formed starting from at least one material sensitive to the basic radiation adapted to be solidified when irradiated by a radiation, means for generating such radiation in the direction of such reference plane, a modelling plate which supports and to which the three-dimensional object being formed is constrained, which is able to move the solidified layer according to a direction substantially perpendicular to such plane, so as to allow the last solidified layer of the object to be arranged in a position adjacent to said plane, means for forming at least one layer of such radiation-sensitive material on such reference plane including at least a portion of a film that can be moved on said plane from one end to the other of said plane and a first feeder of a first radiation-sensitive material on said portion of film. Such forming means comprise at least a first pair of substantially vertically mobile barriers each arranged in proximity to one of these ends of the plane, the distance between these elements determining the width of the reference plane and such modelling plate moving substantially vertically between the mobile barriers. Such forming means comprise, externally to the mobile barriers with respect to the plane, a pair of scrapers which strike the film with their tip and such barriers being movable at least between a first raised position at a height predetermined by the film and a second position in which the lower edge of the barrier is in contact with the film itself. Such film is translatable from one end to the other of said plane in both directions. Such first feeder of such first material on the film is placed in proximity to one of the two barriers, in the space between it and the respective scraper.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
An investment casting model for the creation of a mold for investment casting of a plurality of objects, the investment casting model being realized in solidifiable resin, and includes: a base defining a Z axis; a plurality of wire-like elements all extending from the base, the wire-like elements intersecting each other to form a plurality of simple closed curves, which form a net around the Z axis. At least two of the simple closed curves of the plurality are identical to each other and the net includes: at least a first and a second sets of simple closed curves, each set forming a net sub-structure around the Z axis, the second set being adjacent to the first set along the Z axis; a plurality of object models; and a plurality of connecting branches joining the plurality of object models to the wire-like elements forming the net.
The invention is a cartridge (1, 100) for stereolithography machines (200), which comprises a supporting structure (3) provided with connection means (10) suited to removably connect it to the stereolithography machine (200), a first reservoir (5) suited to contain a material (M1, M2) and provided with a first duct (8) and with a delivery mouth (81) which are suited to place it in communication with a container (4), a feeding unit (7) suited to feed the material (M1, M2) from the first reservoir (5) to the container (4), shutter means (9) suited to close the delivery mouth (81) of the first duct (8), and a second reservoir (12) suited to contain the material (M1, M2). The cartridge (1, 100) furthermore comprises a second duct (13) interposed between the first reservoir (5) and the second reservoir (12) in such a way as to place them in communication with each other. The feeding unit (7) is configured so that it conveys the material (M1, M2) from the first reservoir (5) to the second reservoir (12) and vice versa through the second duct (13) when the shutter means (9) are in the position in which they close the delivery mouth (81).
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A stereolithography system includes a tank provided with a bottom and a stereolithography machine provided with a supporting frame and with a supporting structure operatively associated with the supporting frame and defining a housing configured to accommodate the tank. The tank includes a duct made of a deformable material and having a first mouth and a second mouth in fluid-dynamic communication with the tank; the supporting structure is configured in such a way as to assume, with respect to the supporting frame, a first position and a second position in which the tank is in an inclined position with respect to the bearing plane of the supporting frame, and the stereolithography machine includes a counteracting mechanism configured to be placed into contact with the duct in that second position.
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
Resins for 3D printers, resins for stereolithography. 3D printing machines, machines for stereolithography. Computer software for 3D printers, computer software for
stereolithography.
A multi-station stereolithographic group, includes: support and movement apparatus for a modelling plate with respect to a fixed base facing the modelling plate, the fixed base including at least two work stations positioned in respective areas able to be reached by the modelling plate moved by the support and movement apparatus. Such a fixed base includes at least three work stations: at least one first station for forming an object, at least one second station for washing a formed object, at least one third station for stabilising a formed object.
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
Unprocessed acrylic, methacrylic and epoxy resins for 3D printers, unprocessed acrylic, methacrylic and epoxy resins for sterolithography 3D printing machines, machines for stereolithography Downloadable computer software and recorded computer software for management of 3D printers, Downloadable computer software and recorded computer software for stereolithography
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Unprocessed resins for use with 3D printers, unprocessed resins for use with stereolithography 3D printers
(2) 3D printing machines, machines for stereolithography 3D printing
(3) Computer software for 3D printers, computer software for operating stereolithography 3D printers
A stereolithography machine includes a support structure arranged resting on a substantially horizontal support plane having a reference direction, a tank, having a bottom, coupled with the support structure, a support group coupled with the support structure for the movement above the tank of a modelling plate so that the modelling surface of the modelling plate faces the bottom in a substantially parallel position. The tank includes a recirculation circuit configured to move a photosensitive liquid substance contained in the tank from a first end to a second end of the tank, both defined along the reference direction, to carry out inside the tank a continuous recirculation of the resin that, by gravity, flows out from the first end at a greater height, to the second end at a lower height, and the same resin is returned by the recirculation circuit from the second end to the first end.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
The invention concerns a stereolithography method for the production of a three-dimensional object through the superimposition of layers on one another. The method comprises the following operations: application of a base substance (2), liquid or pasty and suited to be solidified through exposure to predefined radiation (4), to a supporting surface (3) belonging to a first laminar element (51) and to a second laminar element (52); selective irradiation of a layer with a predefined thickness of the base substance (2) in contact with the supporting surface (3) in such a way as to obtain a solidified layer (2b); separation of the solidified layer (2b) from the supporting surface (3) through a movement intended to move them away from each other. The operation of applying the base substance (2) is carried out by depositing a single layer (2a) with thickness at least corresponding to the predefined thickness so that it comes into contact with the second laminar element (52) at least in the areas corresponding to the volume of the three-dimensional object to be obtained. The operation of selective irradiation is performed on the first laminar element (51) at least in the areas corresponding to the volume of the object to be obtained and at the same time as the operation of applying the base substance (2) to the second laminar element (52). The operation of applying the base substance (2) to the first laminar element (51) is performed before the operation of applying the base substance (2) to the second laminar element (52).
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/223 - Foils or films, e.g. for transferring layers of building material from one working station to another
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
Goods & Services
Resins for 3D printers, Resins for stereolithography. 3D printing machines, Machines for stereolithography. Computer software for 3D printers, computer software for stereolithography.
33.
Stereolithography machine with improved optical group
A stereolithography machine (1) for making a three-dimensional object (O) that comprises a container (2) for a fluid substance (R), a source (3, 31, 32) of the predetermined radiation (RL, RL1, RL2), an optical group (4) configured to direct the radiation (RL, RL1, RL2) towards a reference surface (SR) of the fluid substance (R), and a control logic unit (5) configured to control the optical group (4) and/or the radiation source (3, 31, 32) so as to expose at least one portion of the reference surface (SR) to the radiation (RL, RL1, RL2). The stereolithography machine provides that the optical group (4) comprises a first optical sub-group (41) configured to be exposed to the radiation (RL, RL1, RL2) so as to instantaneously project the image of a first portion to be solidified onto the reference surface (SR) and a second optical sub-group (42) configured to selectively convey the radiation (RL, RL1, RL2) towards a point of the reference surface (SR) and to move such a point so as to progressively expose a second portion to be solidified of the reference surface (SR).
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
B29C 64/291 - Arrangements for irradiation for operating globally, e.g. together with selectively applied activators or inhibitors
B33Y 80/00 - Products made by additive manufacturing
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
34.
METHOD TO FORM A FIRST AND A SECOND THREE-DIMENSIONAL OBJECTS FROM A FIRST AND A SECOND SOLIDIFIABLE MATERIALS BEING CAPABLE OF SOLIDIFYING UPON IMPINGEMENT THEREON OF ELECTROMAGNETIC RADIATION
The present invention relates to a method to form a three-dimensional object including a first and a second component (01, 02) from a first and a second solidifiable materials (5a, 5b) being capable of solidifying upon impingement thereon of electromagnetic radiation, the method comprising: o providing a main digital image of the three dimensional object; o introducing said first and said second solidifiable material (5a, 5b) in a first and a second chamber (2a, 2b), respectively; o elaborating the main digital image dividing it in a first digital image corresponding to the first component and a second digital image corresponding to the second component; o associating the first component to the first chamber and the second component to the second chamber; o irradiating by means of an electromagnetic source (6) a layer of said first and/or said second solidifiable material (5a, 5b), according to a given pattern, in order to selectively solidify the layer of the first and/or the second solidifiable material; o repeating the process for a plurality of layers to form the first and the second components (01, 02) of the three dimensional object; o while repeating the process, forming the first and the second components in parallel, by irradiating both chambers at the same time, or by alternating the irradiation from the first to the second chamber and vice versa.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B29C 64/182 - Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects in parallel batches
41 - Education, entertainment, sporting and cultural services
Goods & Services
(1) Physical education; services of gymnasiums and gymnastic-sporting centers; organization and promotion of gymnastic and sporting events, fairs and shows, namely sporting competitions, meetings, workshops, round tables, in the gymnastic, sports, muscle rehabilitation and physical well-being sector; providing information relating to fitness and physical exercises via global computer network and mobile devices; publication of on-line journals, namely blogs regarding exercise, fitness and fitness training; conducting fitness classes; conducting courses of instruction in the fields of fitness, wellness and personal development; providing on-line journals, namely blogs featuring user-defined content in the field of social-networking
Method for manufacturing dental prostheses, comprising the following operations: defining a layered numerical representation of a dental prosthesis (11); for a first layer of the numerical representation, prepare a corresponding layer of a light sensitive liquid substance (6); selectively solidify the layer of liquid substance (6) to obtain a first sheet (7) having a geometry corresponding to the geometry of the first layer of the numerical representation; repeat the operations of preparing a layer of liquid substance (6) and selectively solidify the layer of liquid substance (6) for each subsequent layer of the numerical representation to obtain corresponding sheets (7); cause the mutual adhesion between said sheets (7); modify the composition of the liquid substance (6) after having solidified one of the sheets (7) and before solidifying the subsequent sheet (7), so as to modify one or more optical properties of the liquid substance (6).
The present invention concerns a multi-station stereolithographic group (10), comprising: support and movement means (1 1 ) for a modelling plate (12) with respect to a fixed base (13) facing the modelling plate (12), the fixed base (13) comprising at least two work stations (16, 17) positioned in respective areas able to be reached by the modelling plate (12) moved by the support and movement means (1 1 ). Such a fixed base (13) comprises at least three work stations (16, 17, 18): at least one first station (16) for forming an object, at least one second station (17) for washing a formed object, at least one third station (18) for stabilising a formed object.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
The present invention relates to a cartridge (10) for a stereolithographic machine, comprising: a box-like body (1 1 ) comprising in turn: a container (12), delimited by containment walls (13), having a bottom (14), at least a part of which is transparent, and an opposite access opening (15) adapted to allow access inside the container (12), an inlet mouth (16) and an outlet mouth (17) for a photopolymerisable material, at least one tank (18) for a photopolymerisable material, comprising a transit opening (19) for a photopolymerisable material and an air passage opening (20) communicating with the environment; and comprising: circulation means (21 ) for the circulation of a photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the container (12). Between the circulation means (21 ) and the inlet (16) and outlet (17) mouths, and between the circulation means (21 ) and the transit (19) and air passage (20) openings, valve means (22, 23) are interposed, which are configured to alternatively allow the following use configurations of the cartridge (10): a first configuration preventing the passage of photopolymerisable material between the container (12) and the tank (18); a second configuration allowing the passage of photopolymerisable material between the tank (18) and the container (12); a third configuration of circulation for the photopolymerisable material, allowing the passage of photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the same container (12).
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/255 - Enclosures for the building material, e.g. powder containers
B29C 64/307 - Handling of material to be used in additive manufacturing
The invention is a stereolithography system (1 ) comprising a tank (100) provided with a bottom (101 ) and a stereolithography machine (200) provided with a supporting frame (201 ) and with a supporting structure (202) operatively associated with the supporting frame (201 ) and defining a housing (203) configured to accommodate the tank (100). The tank (100) comprises a duct (103) made of a deformable material and having a first mouth (103a) and a second mouth (103b) in fluid-dynamic communication with the tank (100); the supporting structure (202) is configured in such a way as to assume, with respect to the supporting frame (201 ), a first position and a second position in which the tank (100) is in an inclined position with respect to the bearing plane (ττ) of the supporting frame (201 ), and the stereolithography machine (200) comprises counteracting means (206) configured to be placed into contact with the duct (103) in that second position.
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/307 - Handling of material to be used in additive manufacturing
The present invention relates to a cartridge (10) for a stereolithographic machine, comprising: a box-like body (1 1 ) comprising in turn: a container (12), delimited by containment walls (13), having a bottom (14), at least a part of which is transparent, and an opposite access opening (15) adapted to allow access inside the container (12), an inlet mouth (16) and an outlet mouth (17) for a photopolymerisable material, at least one tank (18) for a photopolymerisable material, comprising a transit opening (19) for a photopolymerisable material and an air passage opening (20) communicating with the environment; and comprising: circulation means (21 ) for the circulation of a photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the container (12). Between the circulation means (21 ) and the inlet (16) and outlet (17) mouths, and between the circulation means (21 ) and the transit (19) and air passage (20) openings, valve means (22, 23) are interposed, which are configured to alternatively allow the following use configurations of the cartridge (10): a first configuration preventing the passage of photopolymerisable material between the container (12) and the tank (18); a second configuration allowing the passage of photopolymerisable material between the tank (18) and the container (12); a third configuration of circulation for the photopolymerisable material, allowing the passage of photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the same container (12).
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/255 - Enclosures for the building material, e.g. powder containers
2═C(R)—CO— and R is a hydrogen atom or a methyl group; (ii) at least one radically polymerizable organic compound (B) different from compound (A); and (iii) a photosensitive radical polymerization initiator (C), wherein the content of said radical polymerizable compound (A) varies from 5% to 70% by weight based on the total amount of compounds (A) and (B). The invention further describes a corresponding stereolithographic use and method and three-dimensional articles produced therewith.
B29C 41/02 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of definite length, i.e. discrete articles
G03F 7/029 - Inorganic compoundsOnium compoundsOrganic compounds having hetero atoms other than oxygen, nitrogen or sulfur
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 70/00 - Materials specially adapted for additive manufacturing
G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
09 - Scientific and electric apparatus and instruments
25 - Clothing; footwear; headgear
28 - Games; toys; sports equipment
35 - Advertising and business services
41 - Education, entertainment, sporting and cultural services
Goods & Services
Downloadable and recorded software and downloadable and recorded software applications for entering, downloading, sharing, viewing and storing information, targets exercises, and activities related to health and fitness; downloadable software and mobile applications for recreational activity, sports and physical exercise for the purpose of measuring calories, tracking workouts, measuring distance and calculating athletic performances Clothing in the nature of dresses, suits, skirts, trousers, shorts, leggings, jerseys, undershirts, polo shirts, t- shirts, short-sleeved t-shirts, long-sleeved t-shirts, shirts, cardigans, jackets, parkas, heavy jackets, sweaters, pullovers, blousons, coats, overcoats, raincoats, furs, combinations, scarves, neckerchiefs, foulard, shawls, stoles, neck ties, braces for clothing, gloves, stockings, socks belts, swimwear, beach dresses, bath robes, pyjamas, underwear, tank tops, vest tops, underpants; footwear, headgear in the nature of hats; bonnets; berets; visors; headwear; hats; caps being headwear; visors being headwear; headbands; bandanas; sweatbands; pants; jerseys; sweat shirts; sweat pants; sports bras; socks; belts; hosiery; vests; hoods; clothing for athletic use in the nature of t-shirts, long-sleeved t-shirts, rain jackets, wind jackets, sleeveless run jackets, socks, gym shorts, tech shirts, women's bras for athletics, pants, cropped bottoms sport pants, running bags, tights, headbands, women's running tank tops, long-sleeved jerseys, women's vests, warm gilets; tank tops; jeans; wind-resistant jackets; blazers; track jackets; fleece tops; boots; compression sleeves being part of an athletic garment for athletic use; insulated clothing in the nature of thermal underwear; thermally insulated clothing in the nature of thermal socks; ventilated clothing in the nature of sports shirts and shorts; footwear; footwear for gymnastic activities; athletic footwear Sporting articles, namely, exercise equipment in the nature of treadmills, rowing machines, stationary exercise bicycles, elliptical exercise machines, adaptive motion exercise machines, stepping machines, weight lifting machine, exercise benches, racks, stretching stations, dumbbells, barbells, kettlebells, plate weights, medicine balls, slam balls, foam rollers, mobility sticks, elastic bands, balance domes, balance pad, jump ropes, speed ladders, cones, boxing gloves; elbow guards for athletic use; protective paddings for martial art, athletics, baseball, boxing, cardio fitness, gymnastics, football, cycling, handball, waterpolo, volleyball, skating, rugby, fencing, ski, skateboard, longboard and waveboard Retail services in the nature of stores featuring apparel, apparel accessories, footwear, footwear accessories, headwear, eyewear and accessories, watches and accessories, sporting goods and equipment, electronics equipment and hardware, bags and luggage of all kinds, umbrellas, sports and fitness products and accessories, foodstuffs, drinks, clothing, household containers and implements, kitchen containers and implements, nutritional supplements, vitamin supplements, food and drink supplements, meal replacement powders Physical education; services of gymnasiums and gymnastic-sporting centers in the nature of gymnastic facilities; organisation of gymnastic and sporting events, fairs and shows, namely, sporting competitions, meetings, workshops, and round tables in the gymnastics, sports, muscle rehabilitation and fitness sector; providing a web site featuring information on exercise and physical fitness accessible through a global computer network and mobile devices; on-line journals, namely, blogs featuring information related to local communities' interests, namely, exercise, fitness, fitness training; fitness classes; fitness instruction, nutrition, health, wellness and personal development; providing on-line journals, namely, blogs featuring user-defined content in the field of social-networking; training namely, sports and fitness training services; arranging professional workshop and training courses
09 - Scientific and electric apparatus and instruments
25 - Clothing; footwear; headgear
28 - Games; toys; sports equipment
35 - Advertising and business services
41 - Education, entertainment, sporting and cultural services
Goods & Services
software and software applications for entering, downloading, sharing, viewing and storing information, targets, exercises, and activities related to health and fitness; downloadable software and mobile applications for recreational activity, sports and physical exercise for the purpose of measuring calories, tracking workouts, measuring distance and calculating athletic performances Clothing in the nature of dresses, suits, skirts, trousers, shorts, leggings, jerseys, undershirts, polo shirts, t- shirts, short-sleeved t-shirts, long-sleeved t-shirts, shirts, cardigans, jackets, parkas, heavy jackets, sweaters, pullovers, blousons, coats, overcoats, raincoats, furs, combinations, scarves, neckerchiefs, foulard, shawls, stoles, neck ties, braces for clothing, gloves, stockings, socks belts, swimwear, beach dresses, bath robes, pyjamas, underwear, tank tops, vest tops, underpants; footwear, headgear in the nature of hats, bonnets, berets, visors; headwear; hats; caps being headwear; visors being headwear; headbands; bandanas; sweatbands; apparel in the nature of pants; shorts; shirts; t-shirts; pullovers; jerseys; sweat shirts; sweat pants; underwear; sports bras; dresses; skirts; sweaters; jackets; coats; socks; gloves; belts; hosiery; vests; hoods; scarves; clothing for athletic use in the nature of t-shirts, long-sleeved t-shirts, rain jackets, wind jackets, sleeveless run jackets, socks, gym shorts, tech shirts, women's bras for athletics, pants, cropped bottoms sport pants, running bags, tights, headbands, women's running tank tops, long-sleeved jerseys, women's vests, warm gilets; tank tops; polo shirts; cardigans; jeans; wind-resistant jackets; blazers; track jackets; fleece tops; padded elbow compression sleeves sold as an integral component of athletic clothing, namely, jersey, uniform; boots; athletic apparel in the nature of athletic shorts; compression sleeves being part of an athletic garment for athletic use; insulated clothing in the nature of thermal underwear; thermally insulated clothing in the nature of thermal socks; ventilated clothing in the nature of sports shirts and shorts; footwear; footwear for gymnastic activities; athletic footwear toy sporting apparatus in the nature of toy scooters; sporting articles and equipment in the nature of treadmills, rowing machines, stationary exercise bicycles, elliptical exercise machines, adaptive motion exercise machines, stepping machines, weight lifting machine, exercise benches, racks, stretching stations, dumbbells, barbells, kettlebells, plate weights, medicine balls, slam balls, foam rollers, mobility sticks, elastic bands, balance domes, balance pad, jump ropes, speed ladders, cones, boxing gloves, elbow guards for athletic use, and protective paddings for martial art, athletics, baseball, boxing, cardio fitness, gymnastics, football, cycling, handball, waterpolo, volleyball, skating, rugby, fencing, ski, skateboard, longboard and waveboard; sports training apparatus in the nature of treadmills, rowing machines, stationary exercise bicycles, elliptical exercise machines, adaptive motion exercise machines, stepping machines, weight lifting machine, exercise benches, racks, stretching stations, dumbbells, barbells, kettlebells, plate weights; gymnastic and sporting articles in the nature of gymnastic apparatus; machines for physical exercises in the nature of treadmills, rowing machines, stationary exercise bicycles, elliptical exercise machines, adaptive motion exercise machines, stepping machines, weight lifting machine, exercise benches, racks, stretching stations; body-building apparatus; indoor fitness apparatus in the nature of treadmills, rowing machines, stationary exercise bicycles, elliptical exercise machines, adaptive motion exercise machines, stepping machines, weight lifting machine, exercise benches, racks, stretching stations, dumbbells, barbells, kettlebells, plate weights; manually operated exercise equipment; fairground and playground apparatus in the nature of parallel bars; appliances for gymnastics in the nature of gymnastic vaulting horses; portable home gymnastic apparatus; aerobic step machines; stands for jogging machines; machines incorporating weights for use in physical exercise; stationary exercise bicycles; body training apparatus in the nature of exercise machines Retail store services featuring apparel, apparel accessories, footwear, footwear accessories, headwear, eyewear and accessories, watches and accessories, sporting goods and equipment, electronic equipment and hardware, bags and luggage of all kinds, umbrellas, accessories made of metal, leather and imitation leather, sports and fitness products and accessories, promotional products, products related to charitable events, foodstuffs, drinks, clothing, household containers and implements, kitchen containers and implements, nutritional supplements, vitamin supplements, food and drink supplements, meal replacement powders Physical education; services of gymnasiums and gymnastic-sporting centers in the nature of gymnastic facilities; organization of gymnastic and sporting events, fairs and shows, namely, sporting competitions, meetings, workshops, round tables, in the gymnastic, sports, muscle rehabilitation and physical well-being sector, providing a web site featuring information on exercise and physical fitness accessible through a global computer network and mobile devices; on-line journals, namely, blogs featuring information related to local communities, exercise, fitness, fitness training; fitness classes; fitness instruction, nutrition, health, wellness and personal development; providing on-line journals, namely, blogs featuring user-defined content in the field of social-networking; training, namely, sports and fitness training services; arranging of training courses
45.
METHOD AND CONTAINER FOR REMOVING RESIN RESIDUES FROM A MODEL CREATED BY THREE-DIMENSIONAL 3D PRINTING
Method for removing resin residues from a model created by three-dimensional 3D printing, including the steps of creating a three- dimensional model through three-dimensional 3D printing, inserting the model into a container (10), introducing a solvent (24) into the container (10) and moving the container (10) with the solvent (24) and the model by means of repeated linear movements. The application further relates to a container (10) for removing resin residues from a model created through three-dimensional 3D printing, the container (10) including a tank (20) adapted to contain a solvent (24), a cover (30) adapted to close the tank (20) and means (38) for sealing the cover (30) to the tank (20), wherein the cover (30) includes or is a base (32) of three-dimensional 3D printer, the base (32) including one or more anchoring elements (34) for a three- dimensional model.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B08B 3/04 - Cleaning involving contact with liquid
The invention is a cartridge (1, 100) for stereolithography machines (200), which comprises a supporting structure (3) provided with connection means (10) suited to removably connect it to the stereolithography machine (200), a first reservoir (5) suited to contain a material (M1, M2) and provided with a first duct (8) and with a delivery mouth (81) which are suited to place it in communication with a container (4), a feeding unit (7) suited to feed the material (M1, M2) from the first reservoir (5) to the container (4), shutter means (9) suited to close the delivery mouth (81) of the first duct (8), and a second reservoir (12) suited to contain the material (M1, M2). The cartridge (1, 100) furthermore comprises a second duct (13) interposed between the first reservoir (5) and the second reservoir (12) in such a way as to place them in communication with each other. The feeding unit (7) is configured so that it conveys the material (M1, M2) from the first reservoir (5) to the second reservoir (12) and vice versa through the second duct (13) when the shutter means (9) are in the position in which they close the delivery mouth (81).
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
The invention is a computer-implemented method for defining a supporting structure (2) for a three-dimensional object (1) to be produced through a stereolithography process, comprising the following operations: defining a first surface (3) to be supported of the three-dimensional object (1) and a second surface (4) facing the first surface (3); defining elongated supporting elements (5) between the surfaces (3, 4); defining pairs of supporting elements (5); for each pair of supporting elements (5), defining an elongated reinforcing element (6) connecting the two supporting elements (5) of the pair. The definition of the pairs of supporting elements (5) comprises the following operations: defining a reference point (7) of each supporting element (5); defining a connected acyclic graph (8) having as vertices the reference points (7); for each edge (9) of the graph, defining one pair of supporting elements comprising the two supporting elements (5) corresponding to the ends of the edge (9). The definition of the pairs of supporting elements (5) comprises the further operation of defining an additional pair of supporting elements for each vertex having order 1 of the connected acyclic graph (8), the additional pair comprising a first supporting element (5) corresponding to the vertex having order 1 and a second supporting element (5) not connected to the first supporting element (5) through any edge (9).
Method for the calibration of a plurality of light sources (3) belonging to an additive manufacturing machine adapted to manufacture layered three- dimensional objects by selective solidification of corresponding layers of a basic material (1) in the liquid, pasty or powdery state, through irradiation with a light radiation emitted by the plurality of light sources, comprising the operations of: providing a layer of basic material (1); providing light sources (3) to convey, on respective work areas (5) of a surface of the basic material (1) mutually superposed in pairs, respective light beams (4) adapted to selectively modify the basic material (1); defining, for each work area (5), a corresponding reference surface superposed to the work area (5) and a corresponding alignment configuration between them; determining the relative displacements of each work area (5) with respect to the corresponding reference surface adapted to bring the work area (5) to the corresponding alignment configuration. The determination of the relative displacements between each work area (5) and the corresponding reference surface comprises the operations of: providing first image portions (8; 81; 82) on the reference surface; activating the corresponding light source (3) to project on the work surface (2), for each first image portion (8; 81; 82), a corresponding second image portion (9; 91; 92) adjacent to the first image portion (8; 81; 82). Each first image portion (8; 81; 82) and the corresponding second image portion (9; 91; 92) represent, respectively, a first graduated scale (10; 101; 102) and a reading cursor (11), or vice versa, configured to indicate, in combination with each other, a misalignment between the two image portions (8, 9; 81, 91; 82, 92).
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
49.
Computer-implemented method for defining the points of development of supporting elements of an object made by means of a stereolithography process
Computer-implemented method for defining, on a three-dimensional model of an object (1), the points of development (6) of supporting elements (7) of the object (1) during its production through a stereolithography process. The method includes the steps of defining the surfaces or portions of surfaces (2) of the object (1) whose points are oriented towards a reference plane (π); of tracing a predefined grid of points (3) on each one of the surfaces or portions of surfaces (2); of identifying, for each one of the surfaces or portions of surfaces (2), the presence of at least one local minimum point (5) with respect to the reference plane (π); of adapting, for each one of said surfaces or portions of surfaces (2), the grid of points (3) so that one of the points of the grid (3) substantially coincides with the local minimum point (5); and of identifying the points of the adapted grid (3) as points of development (6) of the supporting elements (7) for each one of said surfaces or portions of surfaces (2).
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
50.
Printing unit configured for the validation of consumable elements suited to be installed on a plurality of stereolithography machines
The invention is a method for the validation of one or more consumable elements (4) suited to be installed on a stereolithography machine (2) for printing three-dimensional objects through a stereolithography process. The method includes the steps of installing a consumable element (4) provided with a readable univocal identification code (ID) on the stereolithography machine (2), reading said univocal identification code (ID), verifying that the univocal identification code (ID) is authentic and active by making a comparison against a predefined list (L) of authentic and active identification codes and enabling the use of the consumable element (4) on the stereolithography machine (2) in the case where the corresponding univocal identification code (ID) is authentic and active.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
A stereolithography machine (100) that comprises a support structure (1a) arranged resting on a substantially horizontal support plane (π) having a reference direction (X), a tank (2) coupled with the support structure (1a) and provided with a bottom (2a), a support group (5) coupled with the support structure (1a) for the movement above the tank (2) of a modelling plate (3) so that the modelling surface (3a) of such a modelling plate (3) faces, substantially in a parallel position, the bottom (2a). The stereolithography machine (100) provides that, at least during the execution of the stereolithography process for the production of a three-dimensional object, the tank (2), the support group (5) and the modelling plate (3) are coupled with the support structure (1a) so that the modelling surface (3a) and the bottom (2a) lie on planes (π1, π2) intersecting the support plane (π) defining with this support plane angles of intersection (α1) and (α2), respectively, and defining with this support plane (π) lines of intersection (γ1, γ2) respectively, orthogonal to the reference direction (X).
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor
A stereolithography machine (1) for making a three-dimensional object (O) that comprises a container (2) for a fluid substance (R), a source (3, 31, 32) of the predetermined radiation (RL, RL1, RL2), an optical group (4) configured to direct the radiation (RL, RL1, RL2) towards a reference surface (SR) of the fluid substance (R), and a control logic unit (5) configured to control the optical group (4) and/or the radiation source (3, 31, 32) so as to expose at least one portion of the reference surface (SR) to the radiation (RL, RL1, RL2). The stereolithography machine provides that the optical group (4) comprises a first optical sub-group (41) configured to be exposed to the radiation (RL, RL1, RL2) so as to instantaneously project the image of a first portion to be solidified onto the reference surface (SR) and a second optical sub-group (42) configured to selectively convey the radiation (RL, RL1, RL2) towards a point of the reference surface (SR) and to move such a point so as to progressively expose a second portion to be solidified of the reference surface (SR).stereolithography machine with improved optical group
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
Method for manufacturing dental prostheses, comprising the following operations: defining a layered numerical representation of a dental prosthesis (11); for a first layer of the numerical representation, prepare a corresponding layer of a light sensitive liquid substance (6); selectively solidify the layer of liquid substance (6) to obtain a first sheet (7) having a geometry corresponding to the geometry of the first layer of the numerical representation; repeat the operations of preparing a layer of liquid substance (6) and selectively solidify the layer of liquid substance (6) for each subsequent layer of the numerical representation to obtain corresponding sheets (7); cause the mutual adhesion between said sheets (7); modify the composition of the liquid substance (6) after having solidified one of the sheets (7) and before solidifying the subsequent sheet (7), so as to modify one or more optical properties of the liquid substance (6).
The invention relates to a method for the production of a dental article, the method comprising : performing a three-dimensional scan of a portion of a dental arch including at least part of a tooth; generating a first file containing a three-dimensional model of the at least part of tooth scanned, said three- dimensional model comprising (i) spatial coordinates, in a three- dimensional space having an elevation axis Z, of a plurality of points belonging to an outer surface of the at least part of the tooth scanned and (ii) a colour of the outer surface associated with each point of the plurality; processing the first file by associating a same colour with all the points having the same coordinate value in the elevation axis Z, thereby obtaining a second file; sending the second file to a laser stereolithography machine; obtaining a stereolithographic model of said at least part of tooth based on said second file by subsequent polymerization of layers of a liquid material arranged along the elevation axis Z, so as to obtain the stereolithographic model having for each coordinate value in the elevation axis Z a same colour as present in said second file.
Method for manufacturing dental prostheses, comprising the following operations: defining a layered numerical representation of a dental prosthesis (11); for a first layer of the numerical representation, prepare a corresponding layer of a light sensitive liquid substance (6); selectively solidify the layer of liquid substance (6) to obtain a first sheet (7) having a geometry corresponding to the geometry of the first layer of the numerical representation; repeat the operations of preparing a layer of liquid substance (6) and selectively solidify the layer of liquid substance (6) for each subsequent layer of the numerical representation to obtain corresponding sheets (7); cause the mutual adhesion between said sheets (7); modify the composition of the liquid substance (6) after having solidified one of the sheets (7) and before solidifying the subsequent sheet (7), so as to modify one or more optical properties of the liquid substance (6).
A stereolithography machine comprising: a tank provided with a bottom; a modelling plate facing the bottom; a moving unit suited to move the modelling plate according to a direction of movement that is orthogonal to the bottom; a coupling unit between the modelling plate and the moving unit, comprising a first coupling member integral with the moving unit and a second coupling member integral with the modelling plate and movable with respect to the first coupling member according to the direction of movement; tightening means suited to be operated in such a way as to tighten the coupling members against each other according to a tightening direction that is orthogonal to the direction of movement, in order to lock the mutual movement of the coupling members.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
The invention concerns a method for producing a three-dimensional object, in particular an artificial tooth, by stereolithography wherein a liquid photocurable resin composition is cured by light. Said photocurable resin composition contains, based on the total weight of the photocurable resin composition, (i) from 90 to 99.9% by weight of a radical polymerizable organic compound (A) selected from radical polymerizable monomers, oligomers, pre-polymers and mixtures thereof; and (ii) from 0.1 to 10% by weight of a photosensitive radical polymerization initiator (B). Said radical polymerizable organic compound (A) comprises, based on the weight of the radical polymerizable organic compound (A), from 0.5 to 20% by weight of a polyrotaxane compound comprising a polymer chain selected from polyethylene glycol (PEG), polypropylene glycol (PPG), polyethylene glycol-polypropylene glycol (PEG-PPG) block copolymer or polydimethylsiloxane (PDMS), onto which the cyclodextrin ring(s) is/are slipped and wherein the cyclodextrin is derivatized with at least a radical polymerizable group. The invention also concerns a relative liquid photocurable resin composition and articles produced thereby.
C08F 2/46 - Polymerisation initiated by wave energy or particle radiation
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
C08G 83/00 - Macromolecular compounds not provided for in groups
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
Goods & Services
(1) Synthetic resins; artificial resins; synthetic photosensitive resin for the fabrication of three-dimensional models.
(2) Unprocessed silicone resins; synthetic photosensitive resin for the fabrication of three-dimensional models.
(3) 3D printers.
(4) Machines for stereolithography, namely, 3D printers.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
41 - Education, entertainment, sporting and cultural services
Goods & Services
Software and software applications for the control of aerobic and cardiovascular physical exercise machines and apparatus; software and software applications for entering, downloading, sharing, viewing and storing information, targets, exercises, and activities related to health and fitness [ sports equipment, namely, treadmills, aerobic step machines, rowing machines, stationary cycles and virtual reality training cycles, barbells, exercise weights, dumbbells; body-building apparatus; manually operated exercise equipment; appliances for gymnastics; aerobic step machines; stands specially adapted for manually-operated jogging exercise machines; machines incorporating weights for use in physical exercise; stationary exercise bicycles; body training apparatus ] [ Teaching in the field of gymnastics, sports and muscle rehabilitation; training in the field of gymnastics, physical fitness, sport and muscle rehabilitation; entertainment services in the nature of gymnastic performances; sporting and cultural activities, namely, providing sports facilities; organization of competitions and events in the sectors of gymnastics, sport and muscle rehabilitation; coaching services for sporting activities; sports training; physical fitness training services ]
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
Goods & Services
Unprocessed silicone resins; unprocessed artificial photosensitive resin for the fabrication of three-dimensional models [ Machines for stereolithography, namely, 3D printers ]
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Photosensitive resin for the manufacture of three-dimensional models
78.
A PHOTOCURABLE RESIN COMPOSITION FOR STEREOLITHOGRAPHIC MANUFACTURING, THREE-DIMENSIONAL ARTICLES PRODUCED WITH SAID COMPOSITION AND A RELATIVE MANUFACTURING METHOD
The invention refers to a liquid photocurable resin composition for stereolithography, comprising (i) at least one radical polymerizable compound (A) represented by the following general formula (I): R4O-CO-NH-R2-NH-C-O-R1-O-CO-NH-R3-NH-CO-OR4 (I), wherein R1 is a linear or branched polytetramethylene glycol residue having an average molecular weight from 200 to 3,000 g/mol; R2 is a diisocyanate compound residue; R3 is a diisocyanate compound residue being the same as or different from R2; and R4 is selected from AcrO-CH2-CH-, (AcrO-CH2)2CH-, (AcrO-CH2)3C-CH2- AcrO-CH2-CHCH3-, AcrO-CH2-GHG2H5- and (ΑcrΟ-CΗ2)2C(C2Η5)CΗ2-, preferably from AcrO-CH2-CH2- and (AcrO-CH2)2CH-, more preferably is AcrO-CH2-CH-; wherein Acr is CH2=C(R)-CO- and R is a hydrogen atom or a methyl group; (ii) at least one radically polymerizable organic compound (B) different from compound (A); and (iii) a photosensitive radical polymerization initiator (C), wherein the content of said radical polymerizable compound (A) varies from 5% to 70% by weight based on the total amount of compounds (A) and (B). The invention further describes a corresponding stereolithographic use and method and three-dimensional articles produced therewith.
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
B29C 67/00 - Shaping techniques not covered by groups , or
G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
79.
Method for controlling the activity of at least two light radiation sources belonging to a stereolithography machine
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/386 - Data acquisition or data processing for additive manufacturing
80.
IMPROVED STEREOLITHOGRAPHY MACHINE WITH FACILITATED INITIALIZATION.
The invention is a stereolithography machine (1 ) comprising: a tank (2) with a bottom (2a); a supporting unit (5) associated with moving means (4) suited to move it according to a direction of movement (Z) which is orthogonal to the bottom (2a); a modelling plate (3) having a modelling surface (3a) facing the bottom (2a) in order to support a three-dimensional object; a coupling unit (6) suited to removably connect the modelling plate (3) to the supporting unit (5) and comprising a housing (7) and a spherical body (8) revolvingly arranged in the housing (7); releasable clamping means (9) suited to be operated in such a way as to press the housing (7) and the spherical body (8) against each other so as to make them integral with each other and to make the modelling plate (3) integral with the supporting unit (5).
The invention is a stereolithography method for the production of a three-dimensional object (10) through the superimposition of a succession of layers (1-5) obtained by solidifying a liquid material through exposure to predefined radiation (6), comprising the following operations: defining a geometric representation of the layers (1, 2, 3, 4, 5); selecting one or more layers (2)
a) are defined to compensate for the reduced solidifying effect of the predefined radiation (6) on the liquid material due to its penetration in the liquid material down to the depths corresponding to the layers (2), so that the outline of the portion of the three-dimensional object (10) obtained following the solidification of the group of layers approximates more precisely the outline (11) of the three-dimensional object (10).
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29K 105/00 - Condition, form or state of moulded material
82.
Method for producing a three-dimensional object and stereolithography machine employing said method
a) of the container; a leveler (8) arranged in contact with the fluid substance (3). The method includes: selectively irradiating the layer of fluid substance to obtain the solidified layer; extracting the solidified layer from the fluid substance; redistributing the fluid substance in the container by moving the leveler so that they are passed between the modelling plate and the container.
A cartridge for a stereolithography machine, including a container provided with an access opening, a reservoir for containing a base material, liquid or pasty, suited to be solidified through exposure to a predefined radiation, said reservoir being permanently associated with said container, feeding means suited to feed said base material from said reservoir towards said container, characterized in that the bottom of said container is at least partially transparent to said predefined radiation and is situated opposite said access opening.
B65B 3/04 - Methods of, or means for, filling the material into the containers or receptacles
B65B 7/16 - Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B65B 7/00 - Closing containers or receptacles after filling
a) of the container (2); levelling means (8) arranged in contact with the fluid substance (3), associated with power means suited to move them with respect to the container (2) so as to redistribute the fluid substance (3) in the container (2). The power means are configured so as to move the container (2) in each one or the two opposite senses of a direction of movement (Y) and the levelling means (8) comprise two paddles (9, 10) that are opposite each other with respect to the modelling plate (5).
METHOD FOR THE VALIDATION OF CONSUMABLE ELEMENTS SUITED TO BE INSTALLED ON A STEREOLITHOGRAPHY MACHINE AND METHOD FOR ENABLING SAID STEREOLITHOGRAPHY MACHINE TO CARRY OUT THE PRINTING PROCESS
The invention is a method for the validation of one or more consumable elements (4) suited to be installed on a stereolithography machine (2) for printing three-dimensional objects through a stereolithography process. The method includes the steps of installing a consumable element (4) provided with a readable univocal identification code (ID) on the stereolithography machine (2), reading said univocal identification code (ID), verifying that the univocal identification code (ID) is authentic and active by making a comparison against a predefined list (L) of authentic and active identification codes and enabling the use of the consumable element (4) on the stereolithography machine (2) in the case where the corresponding univocal identification code (ID) is authentic and active.
A light-curing oven (1; 100) comprising: a light-curing chamber (2) configured to contain one or more objects (A) to be light-cured; a source (3) of light-curing rays arranged inside the light-curing chamber (2); a vacuum pump (4) with a suction duct (5) communicating with the light-curing chamber (2) and a motorized structure (6; 106) for moving the objects (A) during the light-curing process. The motorized structure (6; 106) may comprise an electric motor (7; 107) with a drive shaft (8) mechanically associated with a support plate (9) for supporting the objects (A) to be light-cured. The electric motor (7; 107) and the drive shaft (8) being configured in such a way that they define for the objects (A) a horizontal rotation axis (X). The motorized structure (6; 106) may also comprise piezoelectric transducers (10; 110) for making the objects (A) vibrate during their rotation.
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Resins for 3D printers.
95.
Cartridge for a stereolithography machine, stereolithography machine suited to house said improved cartridge and method for using said improved cartridge
A cartridge (1) for a stereolithography machine, comprising: a container (2) provided with an access opening (3) and with a transparent bottom (4) opposite the access opening (3); a reservoir (5) suited to contain a liquid or pasty base material, unremovably associated with the container (2); valve means (6) suited to allow the passage of the base material from the reservoir (5) to the container (2), configured to open when the difference between the pressure present in the reservoir (5) and the pressure present in the container (2) is at least equal to a predefined value and to close spontaneously when the pressure difference is lower than the predefined value, the reservoir (5) comprising tight connection means (7) for connection to an external air feeding device (8).
B29C 67/00 - Shaping techniques not covered by groups , or
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor
A stereolithography machine (1) comprising: a tank (2) provided with a bottom (2a); a modelling plate (3) facing the bottom (2a); a moving unit (4) suited to move the modelling plate (3) according to a direction of movement (Z) that is orthogonal to the bottom (2a); a coupling unit (5) between the modelling plate (3) and the moving unit (4), comprising a first coupling member (6) integral with the moving unit (4) and a second coupling member (7) integral with the modelling plate (3) and movable with respect to the first coupling member (6) according to the direction of movement (Z); tightening means (8) suited to be operated in such a way as to tighten the coupling members (6, 7) against each other according to a tightening direction (X) that is orthogonal to the direction of movement (Z), in order to lock the mutual movement of the coupling members (6, 7).
To provide a method for producing an artificial tooth which is excellent in strength, abrasion resistance, hardness, low water absorption, aesthetic property, functionality, and the like within a short time, especially less than 1 hour, smoothly and simply, without requiring skill using a dental photocurable resin composition.
[Solution]
(c) repeating the operation of the step (b) until the objective artificial tooth is obtained.
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
A61C 13/20 - Methods or devices for soldering, casting, moulding or melting
B33Y 70/00 - Materials specially adapted for additive manufacturing
A61K 6/887 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B33Y 80/00 - Products made by additive manufacturing
