Buying a 3D printer is exciting, but you'll need projects and models to make it all work. These free sites offer a huge range ...

This capability is a result of an ongoing partnership with Trace Parts, an online library of parametric components for 2D/3D CAD assemblies. Helical Products Co. Inc., Box 1069, Santa Maria, CA 93456, ...

Usually, CAD software products are very expensive. However, since most of the applications of such software are by companies, they can afford it. The same isn’t true for students and self-employed ...