What types of metal do you use for your robot in general?

[dmorewood]

In your original post you have the basic flat sheet aluminum. But if you go down that road you also need to understand the different types and how to use it. First off you need to have a dedicated CAD designer that understands how to design with sheet metal and the appropriate way to bend and rivet Aluminum. Also the two most common types of aluminum for FRC, and what I recommend for your first year designing with it, is 5052 and 6061.

5052 should be used in flanged(bent) pieces. Technically you can use it for just flat pieces to, but it's not as strong as 6061.

6061 should never be used in a bent piece. The metal has a interesting habit of cracking and "exploding" when bent in a break.

Oh and by the way you will also need to find a company that can cut and bend your aluminum design for you. Depending where your team is located I may be able to help you with that.