Peridot Print LLC

Examples of screen structures are described herein. In some examples, a screen structure may include an input side. In some examples, the screen structure may include a drainage side to be disposed on an extraction surface. In some examples, the screen structure may include a plurality of channels through the screen structure between the input side and the drainage side. In some examples, the screen structure may include a plurality of protruding structures on the input side, wherein the screen structure is three-dimensionally (3D) printed.

In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes an additive manufacturing device to form a three-dimensional (3D) printed object. The additive manufacturing system also includes a controller to form a 3D printed capacitor on a body of the 3D printed object. The controller does this by controlling deposition of a conductive agent to form electrodes of the 3D printed capacitor and by controlling deposition of a dielectric agent in a dielectric region between the electrodes of the 3D printed capacitor.

The present disclosure is drawn to food contact compliant three-dimensional printing kits, materials, compositions, systems, and methods. In one example, a multi-fluid kit of food contact compliant agents for three-dimensional printing can include a food contact compliant fusing agent and a food contact compliant detailing agent. The food contact compliant fusing agent can include from about 70 wt % to about 96 wt % water, from about 3 wt % to about 10 wt % by solids weight of a food contact compliant carbon black dispersion, and from about 1 wt % to about 25 wt % of a food contact compliant water-soluble first co-solvent. The food contact compliant detailing agent can include from about 75 wt % to about 99 wt % water and from about 0.01 wt % to about 1 wt % of a food contact compliant chelating compound.

A computing device comprising a controller is disclosed herein. The controller is to receive a virtual build volume defining an arrangement of a 3D object model to be used by a 3D printer to generate a 3D object; identify a portion of a surface of the to be generated 3D object that is expected to exhibit at least one of a set of surface quality defects; and modify the 3D object model by applying at least one texture pattern to a portion of the 3D object model corresponding to the identified portion, the texture pattern to be selected based on the expected at least one surface quality defect, to cause a 3D geometrical modification of the portion that is to at least partially mask the expected surface quality defect of a 3D object generated using the modified 3D object model.

A kit for three-dimensional (3D) printing is described. The kit comprises a build material composition: a fusing agent composition including a radiation absorber present in an amount ranging from about 0.01 wt % to about 2.0 wt % of a total weight of the fusing agent composition, wherein the radiation absorber absorbs radiation at a wavelength range within the visible light spectrum; and a fusing assist composition including a first co-solvent; a second co-solvent; and a balance of water.

Examples of methods for generating supports are described herein. In some examples, a method includes determining a starting position from a set of voxels of a three-dimensional (3D) object model to be additively manufactured. In some examples, the method also includes generating a support for the 3D object model by traversing a cost field from the starting position.

Examples of methods are described. In some examples, a method includes generating, using a first branch of a machine learning model, a first agent map based on a layer image. In some examples, the method includes generating, using a second branch of the machine learning model, a second agent map. In some examples, the first agent map and the second agent map indicate printing locations for different agents.

Examples of a build material composition and a thermally conductive agent for three-dimensional printing are disclosed. An example of the build material composition includes from about 90 wt % to about 99 wt % of thermoplastic polyurethane particles and from about 1 wt % to about 10 wt % of a thermally conductive filler, based on a total weight of the build material composition. An example of the thermally conductive agent includes an aqueous vehicle and from about 1 wt % active to about 10 wt % active of the thermally conductive filler, based on a total weight of the thermally conductive agent. In both examples, the thermally conductive filler is selected from cubic boron nitride and diamond-like carbon.

Examples of the present disclosure are directed toward fusing agent compositions. An example fusing agent composition includes a radiation absorber, a co-solvent mixture, and a balance of water. In various examples, the radiation absorber is present in an amount ranging from about 0.005 weight percent (wt %) to about 1.0 wt % of a total weight of the fusing agent composition, wherein the radiation absorber absorbs radiation at a wavelength range within the visible light spectrum.

A three-dimensional printing kit includes a fusing agent and a polymeric build material composition. The fusing agent includes a plasticizing solvent package, water, and from about 0.01 wt % active to about 0.35 wt % active of a visible light absorbing dye selected from a yellow dye, a red dye, a blue dye, an orange dye, a green dye, a purple dye, and/or a cyan dye. The plasticizing solvent package consists of i) propylene glycol, or ii) an aromatic alcohol and a plasticizing solvent that increases water solubility of the aromatic alcohol, or iii) propylene glycol, an aromatic alcohol, and a plasticizing solvent that increases water solubility of the aromatic alcohol.