A multidimensional printer makes a multidimensional structure from a liquid composition and includes: an energetic crosslinking particle source; a vacuum chamber that receives energetic crosslinking particles from the energetic crosslinking particle source; a membrane that transmits the energetic crosslinking particles; and a sample chamber that: receives a liquid composition that includes a solvent and polymers, the polymers including a cross-linkable moiety subjected to the energetic crosslinking particles such that portions of the polymers proximate to the cross-linkable moieties subjected to the energetic crosslinking particles crosslink to form a solid crosslinked polymer structure, wherein the membrane isolates a vacuum of the vacuum chamber from vapor of the liquid composition in the sample chamber.

A multidimensional printer makes a multidimensional structure from a liquid composition and includes: an energetic crosslinking particle source; a vacuum chamber that receives energetic crosslinking particles from the energetic crosslinking particle source; a membrane that transmits the energetic crosslinking particles; and a sample chamber that: receives a liquid composition that includes a solvent and polymers, the polymers including a cross-linkable moiety subjected to the energetic crosslinking particles such that portions of the polymers proximate to the cross-linkable moieties subjected to the energetic crosslinking particles crosslink to form a solid crosslinked polymer structure, wherein the membrane isolates a vacuum of the vacuum chamber from vapor of the liquid composition in the sample chamber.

A printing method employs a piece of equipment comprising an energy-delivering exciter that is orientable to produce a punctiform interaction with at least one ink that possibly contains non-uniformities and that is deposited on a printing medium including a transparent interaction area, in order to cause the transfer of a targeted portion of the ink to a receiver. The method includes a step of generating a wetting film at least partially covering the transparent interaction area, followed by a step of depositing the ink on the surface of the wetting film and transferring steps.

In an example of a method for forming three-dimensional (3D) printed electronics, a build material is applied. A fusing agent is selectively applied on at least a portion of the build material. The build material is exposed to radiation and the portion of the build material in contact with the fusing agent fuses to form a layer. An electronic agent is selectively applied on at least a portion of the layer, which imparts an electronic property to the at least the portion of the layer.

In an example of a method for forming three-dimensional (3D) printed electronics, a build material is applied. A fusing agent is selectively applied on at least a portion of the build material. The build material is exposed to radiation and the portion of the build material in contact with the fusing agent fuses to form a layer. An electronic agent is selectively applied on at least a portion of the layer, which imparts an electronic property to the at least the portion of the layer.

The invention relates to a device (1) for the generative production of a three-dimensional object (2) by means of successive layer-by-layer selective solidification of construction material layers consisting of a solidifiable construction material (3), by means of at least one laser beam (5), comprising at least one device (4) for generating at least one laser beam (5) for layer-by-layer selective solidification of individual construction material layers consisting of solidifiable construction material (3), a flow device (9) for generating a fluid flow (10) that flows at least partially through a processing chamber (8) of said device (1), and a detection device (12) for detecting an item of flow information describing at least one physical parameter and/or at least one chemical parameter of the fluid flow (10).

The invention relates to a device (1) for the generative production of a three-dimensional object (2) by means of successive layer-by-layer selective solidification of construction material layers consisting of a solidifiable construction material (3), by means of at least one laser beam (5), comprising at least one device (4) for generating at least one laser beam (5) for layer-by-layer selective solidification of individual construction material layers consisting of solidifiable construction material (3), a flow device (9) for generating a fluid flow (10) that flows at least partially through a processing chamber (8) of said device (1), and a detection device (12) for detecting an item of flow information describing at least one physical parameter and/or at least one chemical parameter of the fluid flow (10).

Certain examples described herein relate to a removable unit for a three dimensional printing system. The removable unit comprises at least one compartment to store build material for a three-dimensional print job, a coupling to engage with a printer device of the three-dimensional printing system, and a memory. The memory is configured to store instructions for the three-dimensional print job for the printer device, and the instructions are readable from the memory by the printer device when the removable unit is engaged with the printer device.

Certain examples described herein relate to a removable unit for a three dimensional printing system. The removable unit comprises at least one compartment to store build material for a three-dimensional print job, a coupling to engage with a printer device of the three-dimensional printing system, and a memory. The memory is configured to store instructions for the three-dimensional print job for the printer device, and the instructions are readable from the memory by the printer device when the removable unit is engaged with the printer device.

The present disclosure describes a 3D printer comprising a core exchanger mechanism to store filament cores, a hotend, an actuation arm and a cutting mechanism to sever the filament. The cores are swappable by the core exchanger mechanism to provide a variety of filament to the 3D printed object during printing. A coreless hotend for use with a 3D printer is also provided, comprised of a receptacle to receive and store cores of the 3D printer during 3D printing. The coreless hotend is also comprised of a locking mechanism to lock and release the cores from the receptacle to replace the core with another core.