Abstract: The present disclosure provides methods and systems for processing a three-dimensional (3D) object for printing by a 3D printer. The methods disclosed herein can allow printing of the 3D object at sub-pixel precision. The methods disclosed herein can comprise modifying a containment level of one or more sub-pixels or adjusting a light intensity level of a pixel comprising one or more sub-pixels.

Abstract: Methods, systems, and apparatus, including a method of multi-material stereolithographic three dimensional printing comprising, depositing a first material through a first material dispenser of a stereolithographic three dimensional printer onto an optical exposure window to form a first material layer; curing the first material layer to form a first material structure on a build head of the stereolithographic three dimensional printer; depositing a second material through the first material dispenser or a second material dispenser onto the optical exposure window to form a second material layer; and curing the second material layer to form a second material structure on the build head.

Abstract: The present disclosure provides methods and systems for printing a three-dimensional (3D) object. The methods may comprise providing, adjacent to a build surface, a film comprising a polymeric precursor. A sensor may be used to determine a profile of the film. The profile may be indicative of a quality of the film. If the profile meets a quality threshold, at least a portion of the film may be exposed to light to initiate formation of a polymeric material from the polymeric precursor, thereby printing at least a portion of the 3D object.

Abstract: The present disclosure provides a system for printing a three-dimensional object. The system may comprise an open platform configured to hold a film of a viscous liquid comprising a photoactive resin. The open platform may comprise a print window. The system may comprise a deposition head comprising a nozzle in fluid communication with a source of the viscous liquid. The deposition head may be configured to move across the platform and deposit the film over the print window. The system may use multiple viscous liquids. The system may comprise an optical source that provides light through the print window for curing at least a portion of the film of the viscous liquid. The system may comprise a controller operatively coupled to direct movement of the deposition head and projection of the light, thereby printing at least a portion of the 3D object.

Abstract: Methods, systems, and apparatus, including a method of multi-material stereolithographic three dimensional printing comprising, depositing a first material through a first material dispenser of a stereolithographic three dimensional printer onto an optical exposure window to form a first material layer; curing the first material layer to form a first material structure on a build head of the stereolithographic three dimensional printer; depositing a second material through the first material dispenser or a second material dispenser onto the optical exposure window to form a second material layer; and curing the second material layer to form a second material structure on the build head.

Abstract: The present disclosure provides methods, systems, and apparatuses relating to hardware configurations for performing multi-wavelength three dimensional (3D) printing using photoinhibition. In at least one aspect, a system for 3D printing comprises a reservoir capable of holding a liquid including a photoactive resin, a build head that undergoes relative motion within the reservoir during 3D printing of a 3D object on the build head, a light projection device that projects a photoinitiation light beam at a first wavelength into a build area within the liquid, and a plurality of light sources arranged with respect to the light projection device and the reservoir that project a plurality of photoinhibiting light beams into the build area at a second wavelength. Each of the plurality of photoinhibition light beams may be projected at a peak intensity in a different respective position in the build area.

Abstract: The present disclosure provides a system for printing a three-dimensional object. The system may comprise an open platform configured to hold a film of a viscous liquid comprising a photoactive resin. The open platform may comprise a print window. The system may comprise a deposition head comprising a nozzle in fluid communication with a source of the viscous liquid. The deposition head may be configured to move across the platform and deposit the film over the print window. The system may use multiple viscous liquids. The system may comprise an optical source that provides light through the print window for curing at least a portion of the film of the viscous liquid. The system may comprise a controller operatively coupled to direct movement of the deposition head and projection of the light, thereby printing at least a portion of the 3D object.

Abstract: The present disclosure provides a system for printing a three-dimensional object. The system may comprise an open platform configured to hold a film of a viscous liquid comprising a photoactive resin. The open platform may comprise a print window. The system may comprise a deposition head comprising a nozzle in fluid communication with a source of the viscous liquid. The deposition head may be configured to move across the platform and deposit the film over the print window. The system may use multiple viscous liquids. The system may comprise an optical source that provides light through the print window for curing at least a portion of the film of the viscous liquid. The system may comprise a controller operatively coupled to direct movement of the deposition head and projection of the light, thereby printing at least a portion of the 3D object.

Abstract: The present disclosure provides a system for printing a three-dimensional object. The system may comprise an open platform configured to hold a film of a viscous liquid comprising a photoactive resin. The open platform may comprise a print window. The system may comprise a deposition head comprising a nozzle in fluid communication with a source of the viscous liquid. The deposition head may be configured to move across the platform and deposit the film over the print window. The system may use multiple viscous liquids. The system may comprise an optical source that provides light through the print window for curing at least a portion of the film of the viscous liquid. The system may comprise a controller operatively coupled to direct movement of the deposition head and projection of the light, thereby printing at least a portion of the 3D object.

Abstract: The present disclosure provides a system for printing a three-dimensional object. The system may comprise an open platform configured to hold a film of a viscous liquid comprising a photoactive resin. The open platform may comprise a print window. The system may comprise a deposition head comprising a nozzle in fluid communication with a source of the viscous liquid. The deposition head may be configured to move across the platform and deposit the film over the print window. The system may use multiple viscous liquids. The system may comprise an optical source that provides light through the print window for curing at least a portion of the film of the viscous liquid. The system may comprise a controller operatively coupled to direct movement of the deposition head and projection of the light, thereby printing at least a portion of the 3D object.

Abstract: Methods, systems, and apparatus, including a method of multi-material stereolithographic three dimensional printing comprising, depositing a first material through a first material dispenser of a stereolithographic three dimensional printer onto an optical exposure window to form a first material layer; curing the first material layer to form a first material structure on a build head of the stereolithographic three dimensional printer; depositing a second material through the first material dispenser or a second material dispenser onto the optical exposure window to form a second material layer; and curing the second material layer to form a second material structure on the build head.