I collect more and more konwledge about 3D printing and I'm very impressed over the rsult. Much higher precision and it's strong too. Now I'm learning 3D CAD, I use the FreeCAD which I was recommended from a friend. Not very difficult, but it take a lot of hours even for a simple drawing.
I collect my drawings on this page and soon I can have them online for download if someone fiend them interesting.
http://www.astrofriend.eu/3d-printing/3dprinting.html
What can a 3D printer do in the future ?
/Lars