- http://www.3ds.com/products/draftsight/overview/
- Linux / Windows / MAC
- Gratuito
- Leve
- http://www.eng-tips.com/viewthread.cfm?qid=298390
- DWG
- DWG TrueView
- http://linuxblog.darkduck.com/2012/10/best-free-linux-cad-software.htmlhttp://linuxblog.darkduck.com/….
- http://librecad.org
- http://sourceforge.net/projects/free-cad/
- http://www.openscad.org/
- http://www.autoq3d.com/