
3D scanning point cloud, triangulation, watertight, texture digitizer scanned probe triangulation structured light time of flight confocal tomography opacity serial sections printing materials, time, cost, post-processing fused-deposition molding multi-jet modeling ink-jet binder selective laser sintering RepRap, Fab@Home, MakerBot, MTM digital file formats STL ASCII solid object_name facet normal n1 n2 n3 outer loop vertex v11 v12 v13 vertex v21 v22 v23 vertex v31 v32 v33 endloop endfacet ... endsolid object_name binary 80 byte ASCII header 32-bit integer number of facets 50 byte facet records 32-bit IEEE floats normal vertices 1,2,3 2 bytes padding right hand rule normal unit length (often optional) OBJ X3D, VRML/WRL .cad (FRep, BRep, CSG, SAT, lattice, octree) software Art of Illusion Blender GLC_Player Rhino Grasshopper Geomagic cad.py assignment * scan an object - extra credit: make the scanner * print an object - extra credit: make the printer - extra credit: edit and print an object that you scanned