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1. (WO2018058087) TECHNIQUES FOR REDUCING DIFFERENTIAL CURE ARTIFACTS FOR ADDITIVE FABRICATION AND RELATED SYSTEMS AND METHODS

Pub. No.:    WO/2018/058087    International Application No.:    PCT/US2017/053376
Publication Date: Fri Mar 30 01:59:59 CEST 2018 International Filing Date: Wed Sep 27 01:59:59 CEST 2017
IPC: B33Y 10/00
B33Y 50/02
B29C 64/10
B29C 64/393
Applicants: FORMLABS, INC.
Inventors: FRANTZDALE, Benjamin
MISHCHENKO, Andrey
Title: TECHNIQUES FOR REDUCING DIFFERENTIAL CURE ARTIFACTS FOR ADDITIVE FABRICATION AND RELATED SYSTEMS AND METHODS
Abstract:
According to some aspects, techniques for reducing time-dependent fabrication artifacts in additive fabrication are provided. By selectively activating and deactivating an element of an additive fabrication device that forms solid material, adjacent regions of material may be formed sequentially, thereby reducing time-dependent fabrication artifacts at the cost of increasing the time taken to fabricate an object. In some embodiments, selective activation and deactivation of an element of an additive fabrication device that forms solid material may be performed to a subset of an object being fabricated based on an assessment of which portions of an object will be visible upon fabrication.