This is all the necessary hardware to join two rectangular bases or triangular bases by stacking them. The bases have predrilled holes in them that fit these spacers.
This is the chain and sprocket kit for the IG52-DB4 robot platform. It includes the sprockets, 6 feet of #25 chain, and 4 connecting links.
This is a prebuilt version of TP-251-003, our programmable triangular omni wheel vectoring robot. It can vector in any direction and is great for indoor robotics. An Arduino Mega and encoders allow for this to be an autonomous robot.