A build system is provided with: a build apparatus that performs a build process for forming a build object by supplying build materials to an irradiation area of an energy beam from a supply system while irradiating a target object with the energy beam from an irradiation system; and a change apparatus that is configured to change a relative position between the energy beam and the target object, wherein the build system differentiates a condition of the build process that is performed at a first area of the target object and a condition of the build process that is performed at a second area of the target object.

Disclosed is a coater assembly 1 for a 3D printer, comprising a coater 3 having a container 5 which defines an inner cavity for receiving particulate construction material which opens into a container opening 7 for outputting the particulate construction material from the container 5, and an output region 9 which defines a coater output opening 11 for outputting the particulate construction material from the coater 3 onto a construction field. The container 5 is movable relative to the coater output opening 11 so that by moving the container 5 relative to the coater output opening a discharge of particulate construction material from the inner cavity through the container opening 7 and the coater output opening 11 onto the construction field is variable.

An example of a shipping and handling fluid for a three-dimensional (3D) printer is disclosed. The shipping and handling fluid includes a co-solvent, a first sugar alcohol, a second sugar alcohol, a surfactant, and a balance of water. The first sugar alcohol includes a ring structure, and the second sugar alcohol has a linear structure.

The invention relates to a print head (10) for a 3D printer (1), comprising a feed (11) for a raw material (20) having variable viscosity and a nozzle (14) which tapers in the flow direction of a liquid phase (22) of the raw material (20) in order to output said liquid phase (22) through an outlet opening (15), wherein at least one pressure generator (12) is provided in order to raise the pressure of at least part of the liquid phase (22) to a base pressure, and wherein at least one pressure modulator (13) connected between the pressure generator (12) and the nozzle (14) is provided in order to modulate the pressure of at least part of the liquid phase (22) about the base pressure.

The invention relates to a print head (10) for a 3D printer (1), comprising a feed (11) for a raw material (20) having variable viscosity and a nozzle (14) which tapers in the flow direction of a liquid phase (22) of the raw material (20) in order to output said liquid phase (22) through an outlet opening (15), wherein at least one pressure generator (12) is provided in order to raise the pressure of at least part of the liquid phase (22) to a base pressure, and wherein at least one pressure modulator (13) connected between the pressure generator (12) and the nozzle (14) is provided in order to modulate the pressure of at least part of the liquid phase (22) about the base pressure.

The present invention relates to a powder distribution device that can uniformly distribute powder using powder flow due to the weight of the powder itself, and a 3D printing device including the same. The powder distribution device of the present invention comprises a powder distribution unit that includes: an outer frame having an empty powder material inlet port; and at least one distribution plate disposed inside the outer frame to disperse introduced powder, wherein the powder can be broken down using the powder flow without additional power from a feed screw, a motor, or the like.

The present invention relates to a powder distribution device that can uniformly distribute powder using powder flow due to the weight of the powder itself, and a 3D printing device including the same. The powder distribution device of the present invention comprises a powder distribution unit that includes: an outer frame having an empty powder material inlet port; and at least one distribution plate disposed inside the outer frame to disperse introduced powder, wherein the powder can be broken down using the powder flow without additional power from a feed screw, a motor, or the like.

A felt gripper head contains two regions of felt material each on plates that slide and form a slight angle with respect to each other during engagement with a fibrous substrate material.

A felt gripper head contains two regions of felt material each on plates that slide and form a slight angle with respect to each other during engagement with a fibrous substrate material.

A stacker for a 3D printer apparatus contains a positioning conveyor and a support plate hinged to drop on a signal, whereupon a push plate will push a printed and powdered sheet downward and onto registration pins, to form a stacked register of such sheets.