To be honest, I prefer Solidworks. If you have inventor, thatz great. But the key thing is that in CAD, you can make each individual part and then make an assembly of your robot. Also individual parts can be converted to mastercam files and then to the CNC. Thatz what we do. If you need any help, email me at
rcthekid1323@gmail.com. I would love to help your team with CAD and so would anyone else on Chief Delphi.