scanning
   digitizer arm
   scanned probe
   triangulation   
   structured light
   time of flight
   confocal microscpe
   CAT

printing
   multi-jet modeling
   ink-jet binder
   fused-deposition molding
   selective laser sintering
   RepRap, Fab@Home, HTMSTM(a)A
   digital fabrication

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
   Blender
   GLC_Player
   Geomagic

assignment
   scan, modify, and print an object

sections
   Tuesday 11:00: Elliott, Inna, Stephen, Andrea, Nadya
   Tuesday 1:00: Chris, Agnes, Daniel, Somnath
   Wednesday 11:00: Courtney, Haseeb, Jonathan, Ryan