Freecad is similar to Catia, and Q-CAD is similar to Autocad.
I have used in the past:
Solidworks, Autocad, and Catia
Went to Fox Valley Technical College and recieved a AAS in mec...
I am a mechanical engineer with experience in the field of autocad modelling for more than 12 years.
I lead the design department in a workshop so it's almost my daily job 2d&3d.