Question: are there any free cad programs?
Answer: 3D Slash. 3D Slash is perfect if you really have no previous experience with 3D, but it is also a perfect software for kids. ... 
3D-Crafter. 3D-Crafter is a free design software developed by Amabilis Software. ... 
Leopoly. ... 
ScultGL. ... 
LibreCAD. ... 
QCAD. ... 
K-3D. ... 
LeoCAD.