[JPBlacksmiths]

We usually use one inch C-Channel aluminum for our chassis and for the rest of the robot we usually use one inch extruded aluminum and one inch aluminum square tubing. We occasionally use steel when more strength is needed, but we prefer aluminum for the price and weight.

Some people brought up welding as the best option for robot assembly, but we don't do that due to our limited budget. By bolting the majority of our metals together, we can take the robot apart and re-use some of the metal for the next year.