What materials do you most commonly use on your robots?

[bs7280]

the team I am on is still relatively new, we have been using the same stock material, 80-20, for basically everything we do (with a few exceptions). While 80-20 is a great material it can still be limited, bulky, and harder to work with. This year we have access to a cnc machine, lathe several mills, and a 3d printer, so we are especially interested in how we can fully utilize those tools.

What materials do other teams use or buy a lot of to use with their robots? I am especially interested in what some of the teams that regularly go to nationals use. I see some pictures of teams with early versions of robots constructed mostly out of 80/20 but then the final version seems to be something else entirely.