RCH_Projects
Alibre Super User
Perhaps of some value to 3D print users!
http://www.solidsmack.com/fabrication/find-3d-printer-material-senvol-database/
http://senvol.com/
http://www.solidsmack.com/fabrication/find-3d-printer-material-senvol-database/
"Now they’ve released the Senvol Database for all you Engineers and Designers out there; a very complete list of 3D printers and materials to gauge cost and material specs. Do you want to know what the hardness of 3D Systems’ Accura 55 plastic? Shore thing, they have that (pun intended)."
http://senvol.com/