ze starých DVD mechanik
Repozitář https://github.com/hspce/miniCNC
http://www.instructables.com/id/Pocket-laser-engraver/
http://www.instructables.com/id/Small-Arduino-CNC/
http://www.instructables.com/id/Mini-CNC-Plotter-Arduino-Based/
http://www.g7smy.co.uk/?p=391