A clock that plots time. Designed with makeability in a fablab/makerspace/hackerspace in mind.
Laser cutter or 3D printer
1 dry wipe pen
M3 nuts, bolts, thread tap
Update to V1.01:
added calibration routine and documentation to arduino code
see the instruction tab above for building instructions
The original link:http://linksprite.com/wiki/index.php5?title=Plotclock_DIY_Robot_with_Arduino_Uno_Drawing_Robot