Patent ID: 9498920
Filing Date: 2016-11-22
CPC Classification: B29C,B29K,B33Y

Claim Text:
1. An apparatus for forming a three-dimensional object from a polymerizable liquid, comprising: (a) a support; (b) a carrier operatively associated with said support on which carrier said three-dimensional object is formed; (c) a stationary rigid build plate connected to said support, said build plate comprising a fixed semipermeable member, said semipermeable member comprising a build surface and a feed surface separate from said build surface, with said build surface and said carrier defining a build region therebetween; (d) a polymerization inhibitor source in fluid communication with said feed surface; (e) a liquid polymer supply operatively associated with said build plate and configured to supply liquid polymer into said build region for solidification polymerization; (f) a radiation source operatively associated with said build plate and configured to irradiate said build region through said build plate and form a solid polymerized region therein from said liquid polymer; and (g) a controller operatively associated with said carrier and said light source for advancing said carrier and said build plate away from one another solely in the X and Y (horizontal) directions during or after polymerization of liquid in said build zone.