It is an idea of a robot with track drive. For making this, two sets were used:
Tamiya 70097 Twin-Motor Gearbox Kit (motors with gears)
Tamiya 70100 Track and Wheel Set (track)
Housing was made of installation channel.
This is a simple to make device. You don't need to know electronics well, have an advanced workshop or specialistic tools. Everything you need to have is a soldering iron, some cables, screwdriver and five hours of free time.
The robot was made in module shape, with possibility of work as:
explorer
maze machine/bypassing obstacles
linefollower
sparing partner for mini-sumo (it is too large for mini-sumo)
Info about the robot:
power unit – motors with Tamiya gearboxes
track drive – Tamiya
length x width x height: 190 x 110 x 80mm
control Arduino Duemilanove + engine control of own development (self Shield)