A question often asked, "Which software should I use?". Listed are 3D MCAD design softwares. Take your pick...
FREE:
123D Design PC Mac
Openscad PC Mac Linux
Onshape Online
FreeCAD PC Mac Linux
DesignSpark Mechanical PC
TinkerCAD Online
BRL-CAD PC Mac Linux Solaris IRIX BSD
SolveSpace PC Mac Linux
Creo Elements PC
Selfcad Online BETA
PROPRIETRY:
Fusion 360 PC Mac
Catia PC
Creo PC
NX PC Linux
Geomagic Design PC
Solidworks PC
SolidEdge PC
Moi3D PC Mac Linux
Rhinoceros PC Mac
ZW3D PC
Top Solid PC
SolidFace PC
VariCAD PC Linux
Autodesk Inventor PC
Spaceclaim PC
TurboCAD PC Mac
Powershape PC
Kompas-3D