Window Painting Robot (arduino, processing, accelerometer)

Step 2: Look at That Body

For the body I used scrap metal to make a general U shape in the frame. I later added a support beam at the open end of the U to give it more strength, so I would advise you to just make a square with an opening in the center (for the servo and pen to be mounted in). The body's width should be able to fit both your motors as they will be mounted under it. Mine measures 12.5 centimeters as my motors are 5.5 cm wide. The body also should be long enough to mount both your wheels with gears to drive them. My body ended up being 15 cm long, close to a square shape. Keep in mind that the magnet will be mounted at the center of the robot's underside (see next slide for details) so make space if that is needed.

Just as a general reminder, keep it light! The lighter weight, the easier it is to maneuver.