Apparatus and method for producing three-dimensional objects

摘要

PCT No. PCT/EP97/00787 Sec. 371 Date Oct. 20, 1997 Sec. 102(e) Date Oct. 20, 1997 PCT Filed Feb. 19, 1997 PCT Pub. No. WO97/30836 PCT Pub. Date Aug. 28, 1997In order to achieve a homogeneous density distribution in a layer to be solidified of a three-dimensional object produced by laser sintering a laser beam is passed across the surface of the layer to be solidified, whereby the travelling speed of the beam varies as a function of the length of lines of a line pattern.