A 3D printer comprising: a vat for liquid photopolymer; a print platform for extending into the vat; a screen assembly have an arrangement of screens for providing an exposure of patterned electromagnetic radiation for selectively polymerising successive layers of photopolymer to build a 3D printed object on the print platform; and a control mechanism for controlling the separation of the print platform and screen assembly parallel to a build direction.

A hybrid laser printing (HLP) technology that utilizes ultrafast laser in sequential additive-subtractive modes to create 3D hydrogel constructs. The approach involves the synergistic use of additive crosslinking and subtractive ablation processes that are conventionally mutually exclusive. HLP can be operated at virtually any penetration depth and allow fabrication of multi-layer hydrogel constructs at micrometer resolution. HLP was used to print ready-to-use functional chips using commonly used hydrogels for potential cellular communication and migration applications. HLP was also found to be compatible with in situ printing of cell-laden hydrogel constructs. HLP makes shaping of soft hydrogels into 3D multi scale functional devices possible.

A hybrid laser printing (HLP) technology that utilizes ultrafast laser in sequential additive-subtractive modes to create 3D hydrogel constructs. The approach involves the synergistic use of additive crosslinking and subtractive ablation processes that are conventionally mutually exclusive. HLP can be operated at virtually any penetration depth and allow fabrication of multi-layer hydrogel constructs at micrometer resolution. HLP was used to print ready-to-use functional chips using commonly used hydrogels for potential cellular communication and migration applications. HLP was also found to be compatible with in situ printing of cell-laden hydrogel constructs. HLP makes shaping of soft hydrogels into 3D multi scale functional devices possible.

The present invention relates to a method for additive manufacturing of a 3D-structured form and to a device for additive manufacturing of a 3D-structured form.

A processing machine includes a plurality of radiating modules disposed in a row, and a process chamber module configured to releasably attach to the plurality of radiating modules. The process chamber module includes a process chamber defining a processing field, a construction platform, a powder coater, and a powder reservoir. The powder coater is configured to apply a powder material layer-by-layer in a direction of the construction platform within the processing field. The powder reservoir is configured to infeed the powder material to the powder coater. Each radiating module includes a respective energy beam source configured to generate an energy beam, and a respective beam guide configured to guide the energy beam in a direction of the construction platform within a portion of the processing field. The portions of the processing field of two adjacent radiating modules partially overlap.

A three-dimensional printing approach based on stereolithography with variable printing resolutions to solve the trade-off between throughput and resolution. In this technology, the variable fabrication resolutions are achieved by switching light wavelength. The apparatus includes an optical filter based on high-contrast gratings. In one embodiment, the minimum printing resolution of the accordingly constructed stereolithography apparatus is reduced to 37 μm.

A three-dimensional printing system for fabricating a three-dimensional article includes a motorized build platform, a dispensing module, a pulsed light source, an imaging module, a movement mechanism, and a controller. The imaging module receives radiation from the pulsed light source and includes a two-dimensional mirror array. The movement mechanism imparts lateral motion between the imaging module and the build platform. The controller is configured to operate the motorized build platform and the dispensing module to form a layer of build material at a build plane, operate the movement mechanism to laterally scan the imaging module over the build plane, operate the pulsed light source to generate a sequence of radiation pulses that illuminate the mirror array, and operate the mirror array to selectively image the build material.

The printing and object-shaping system includes inkjet heads that discharge ink droplets of ultraviolet curing-type inks, a curing unit, a platen which is a table-shaped member disposed so as to face the inkjet heads, and a controller configured to control the operations of at least the inkjet heads and the curing unit. This system is operable to carry out operations in a printing mode and a three-dimensional object shaping mode. The printing mode is a mode for performing printing on a medium supported on the platen. The three-dimensional object shaping mode is a mode for depositing an ink in layers on the platen to form a three-dimensional object. The controller receives an instruction to select one of the printing mode and the three-dimensional object shaping mode and controls the operations of at least the inkjet head and the curing unit in accordance with the mode selected.

A shaping apparatus includes: a bench unit that has a light shielding wall around the bench unit; an ejecting unit that is moved relatively with respect to the bench unit and ejects a droplet of a light curable shaping liquid toward the bench unit; and an irradiating unit that performs scanning the ejected droplet on the bench unit with irradiation light to cure the droplet in a state where the ejecting unit is moved to outside from the light shielding wall.

The present disclosure provides a printer system based on high power, high brightness visible laser source for improved resolution and printing speeds. Visible laser devices based on high power visible laser diodes can be scaled using the stimulated Raman scattering process to create a high power, high brightness visible laser source.