GCM 750 Lecture Notes - Lecture 3: Fused Filament Fabrication, Formlabs, Stereolithography
8 Feb 2017
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Additive tech-- object created with multiple layers. Takes resin, uses laser to outline material. Laser shines on liquid, traces path, material hardens. Same resin, also uses uv, goes through carbon. Photopolymerization--hardens when hit with light in a cross-linking process. Washed away raised surface = printing plate. Has liquid bath, laser shines up from the bottom, hardening the resin above it. Thing is pulled up, vs makerbot where you build from the ground up. After it"s pulled out, needs to be washed in alcohol bath, dark room to cure. ** photopolymer resin resolution high res because it"s a light dot. Continuous, unlike formlab, where you trace and wait. Takes powder, fused by high intensity laser. Uses paper--cuts into it and glues it together. 3d model- a mathematical representation of any 3d surface. Polygon- closed plane with 3+ sides; in 3d modeling, also called face. Resolution- # of polygons = more data = bigger file size.
