Solid freeform fabrication of easily removeable support constructions

摘要

A support construction and a method of creating a support construction in a volume generated by solid freeform fabrication, where the support construction includes layers of supporting materials, such layers comprising a continuous strip of material within such volume such that when the strip is lifted or pulled, the layers of supporting materials including the strip are removed together from the volume.

主权项

1. A method of constructing a support construction in a process of fabricating a three dimensional (3D) object, comprising:
selectively depositing in layers, layer by layer, a modeling material according to cross-sectional layers of the 3D object; selectively depositing in the layers as a support construction, a first and second supporting materials, wherein said first and second supporting materials are deposited in a volume designed to be an empty space in said 3D object, and wherein said support construction comprises a strip of the first supporting material, said strip intersecting said layers in said volume; and removing said support construction from said volume upon application of a lifting force on said strip.