We recommend using the M5 steel mounting screw to mount IG52 motors. We use these in our Custom Length IG52 SB Robot platform when we mount the motor to a 1/8" thick plate.
The GPS 18x is an OEM, high-sensitivity GPS sensor for use in automotive, fleet vehicle, and electronics applications that require a small, highly accurate GPS receiver.
The HD2 tracked platform is a large, heavy duty tracked robot with the power to pull a truck and climb stairs. A wealth of internal space allows for batteries, controls and an optional computer.