Quote Originally Posted by Max View Post
Which corners do you mean? You mean the 90 degree folds in the armour at the back?
Yep, they are very vulnerable to horizontal spinners.

In Solidworks you can assign materials to different bodies so you don't have to do your calculations manually.

Asigned Materials C3 01.JPG

If you right click on a body, materials, edit material, then choose one from the list.

Asigned Materials C3 02.JPG

Then you can go to the Evaluate tab and then go to Mass Properties. It will break down all the body masses for you, give you the total and show you the centre of mass.

The reason I said steer away from GR02's is that their will come a point where there are no more left and suddenly your bot wont work. If something breaks you have no way of replacing it. You are best to design around a part you know is still in production and leave what remains of the GR02's to the machines that already rely on them.