Plotclock is a robotic clock that uses an arm to write the time on a mini whiteboard with a dry erase marker. After it writes out the time, it erases the numerals with an eraser and begins anew. It is controlled by an microcontroller, and can be made with a 3D printer or laser cutter.
Description:
Name: Plotclock Robotic Clock Model: Null Color: White Material: Acrylic Age: ≥14 years old