Hofmann M.,3D Systems
ACS Macro Letters | Year: 2014
3D printing has recently gained much attention from media and the scientific community, touted as a replacement for traditional manufacturing and a potential to change the way we develop, produce, market, and distribute all sorts of products. With a short introduction to the general idea and initial development of rapid prototyping, we have a look at the prevalent technologies which are now summarized as 3D printing, each with its specific properties and reliance on the materials adapted to the automated application process. Polymers in various forms, reactive, liquid solutions, or as thermoplastic melts, play a key role in many applications and the further expansion toward manufacturing robust, real end use products. © 2014 American Chemical Society.
3D Systems | Date: 2015-11-06
In one aspect, adhesives for use with a 3D printer are described herein. In some embodiments, an adhesive for use with a 3D printer comprises a first polymeric component comprising a poly(vinyl alcohol) and a second polymeric component. The poly(vinyl alcohol), in some embodiments, comprises amorphous poly(vinyl alcohol). In some embodiments, the second polymeric component comprises a water-soluble polymer. Further, in some embodiments, an adhesive described herein further comprises a solvent, a surfactant, and/or a preservative.
3D Systems | Date: 2015-03-11
In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein is a composite ink. Such a composite ink, in some cases, comprises an optically transparent or substantially transparent carrier ink comprising a curable material; and a colorant dispersed in the carrier ink in an amount of about 0.01 to 5 weight %, based on the total weight of the composite ink.
3D Systems | Date: 2015-03-11
In one aspect, methods of printing a color 3D article are described herein. In some embodiments, a method described herein comprises receiving data representing a surface colorization of the article, and transforming the data representing the surface colorization of the article into voxel data of the article. The voxel data comprises (a) location values and at least one of (b) color values and (c) transparency values for a plurality of columns of voxels normal or substantially normal to a surface of the article. The method further comprises selectively depositing layers of one or more build materials onto a substrate to form the article in accordance with the voxel data. In addition, at least one column of the plurality of columns of voxels exhibits a surface color resulting from a combination of colors of a plurality of voxels of the column.
3D Systems | Date: 2015-05-19
A crutch includes a grip and a forearm support that are coupled to an elongated member that extends from the forearm support to the ground. The inner surface of the forearm support can correspond to a digital representation of a forearm of the patient and the outer surface of the hand grip can correspond to a digital representation of a palmar surface of the patients hand in at least a partially closed position.