[Jaci]

We use mostly 3mm aluminium with some similar steel portions where extra reinforcements are needed. For main support structures we usually use 25x25mm SHS, although apart from the drivetrain not much of that was required this year for us.

Most of our parts are bent into shape as sheet metal, however some 90 degree joints (such as our shooting shroud) are riveted (or even welded) into place. Our rhino plates this year are 3mm with supporting churros and SHS to prevent bending and to hold them firmly in place.

Our robot last year was the stock base with a 3mm steel baseplate. Our 'A frame' lifting guiderails were 25x25, 3mm steel SHS, welded into a slanted A frame and bolted to the chassis.