[Type]

One thing I would advise making is depending what type of material you use for your robot, making a jig in case you need to lighten up your robot. We used primarily 2" width pieces on our robot in 2016, so 2" x 1/4" flat stock, 2" x 1" rectangle tubing, etc. so we created something we could clamp on and make perfectly center holes. It allowed us to maximize the amount of holes to reduce the amount necessary and effectively. We had some areas we wanted to remove more weight than others due to trying to lighten our arm and robot at the same time.