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1. (WO2018220632) METHOD AND SYSTEM FOR ADDITIVE MANUFACTURING OF PEELABLE SACRIFICIAL STRUCTURE

Pub. No.:    WO/2018/220632    International Application No.:    PCT/IL2018/050590
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: B33Y 10/00
B33Y 30/00
B29C 64/106
B29C 64/112
B29C 64/40
B29C 64/209
B29C 64/118
Applicants: STRATASYS LTD.
Inventors: SHITRIT, Yaniv
NAPADENSKY, Eduardo
Title: METHOD AND SYSTEM FOR ADDITIVE MANUFACTURING OF PEELABLE SACRIFICIAL STRUCTURE
Abstract:
A method of additive manufacturing of a three-dimensional object (210). The method comprises: sequentially dispensing and solidifying a plurality of layers comprising (i) a stack of model layers (212) arranged in a configured pattern corresponding to the shape of the object (210) and being made of a modeling material, (ii) a sacrificial structure (220) having a stack of sacrificial layers (214) made of an elastomeric material, and (iii) a stack of intermediate layers (216) made of a support material having an elastic modulus less than the elastomeric material and being between the stack of model layers (212) and the sacrificial structure (220); and applying a peeling force (218) to the sacrificial structure (220) to remove the sacrificial structure (220), and to expose the stack of model layers (212) and/or the stack of intermediate layers (216) beneath the sacrificial structure (220).