Whiteboard Compass

thingiverse

A handy tool for drawing precise circles on whiteboards using a dry erase marker, engineered with everyday materials from a local hardware store. The mechanism relies on a sturdy 5/8-inch inner diameter bearing, sourced from a tractor supply shop, paired with a versatile 3/8-inch wooden dowel rod. Two robust #4 wood screws secure the pinch block in place. Check out the accompanying video for a clear assembly guide and see how it fits together seamlessly. Some design tweaks were made to accommodate my specific printer's unique specifications; however, results might differ on other printers due to slight variations in mechanical precision.