3-D color model making apparatus and process

Details 3-D color model making apparatus and process 3-D color model making apparatus and process

1999-05-27

2000-12-26

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

347 1, 425145, 425375, 700119, B29C 4102, B29C 4152

Patent

active

06165406&

ABSTRACT:
A freeform fabrication process and apparatus for making a colorful 3-D object. The process includes (1) operating a multiple-channel droplet deposition device for supplying and, on demand, ejecting droplets of multiple liquid compositions containing a solidifiable baseline body-building material and different colorants; (2) providing a support platform a distance from this deposition device to receive the droplets therefrom; and (3) during the droplet ejecting process, moving the deposition device and the platform relative to one another in an X-Y plane and in a Z direction orthogonal to the X-Y plane so that the droplets are deposited to form multiple layers to build a colorful 3-D object. These steps are executed under the control of a computer system by taking additional steps of (4) creating a geometry and color pattern of the object on a computer with the geometry including a plurality of color-coded segments defining the object; (5) generating programmed signals corresponding to each of the segments in a predetermined sequence; and (6) moving the deposition device and the platform relative to each other in response to these programmed signals. Preferably, the system is also operated to generate a support structure for any un-supported feature of the object.

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