Rovers and robot cars, any number of axles

Pick the 2WD deck with a ball caster, the 4WD skid-steer chassis, or design a chassis in the Workshop with as many axles as you need. Wire the motor driver, the board and an HC-SR04 ultrasonic sensor, then drive it on floor or grass in a MuJoCo physics simulation.

[01] Step by step

How it goes

  1. [01]Choose a chassis or design your own in the Workshop
  2. [02]Fit the TT gearmotors, wheels and caster
  3. [03]Wire the motor driver, board, battery and sensors
  4. [04]Write or pick the behaviour: line following, obstacle avoiding
  5. [05]Drive it in the physics sim and tune it

[02] Specification

Chassis you can build

2WD210 x 145 mm deck, two TT gearmotors, rear ball caster
4WDTwo 255 x 150 mm decks, four driven wheels, skid steering
Your ownAny number of axles, drawn and cut in the Workshop
SensorsHC-SR04 ultrasonic, line sensors, IMU
BoardsArduino Uno and Nano, ESP32, Raspberry Pi

[03] Standards

Marked against

  • [01]ISO 273 clearance holesClearance hole sizes for every screw you drill for
  • [02]ISO 2768-1 tolerancesGeneral tolerances your cuts are measured against

Start today

Cut your first plate today

Create an account and open the Workshop in your browser, then take a short course to go further.