Rapid recoating of three-dimensional objects formed on a cross-s

Plastic and nonmetallic article shaping or treating: processes – Stereolithographic shaping from liquid precursor

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264 401, 264308, 36446827, 425135, 4251744, B29C35/08;41/02

Patent

active

059025379

ABSTRACT:
Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.

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