Plotter made of two old CD drives, a servo and a Raspberry Pi
Channel: HomoFaciens
Date: 2015-03-12

Table Of Content:
00:05 Introduction
00:22 Disassembling the CD drives
00:41 Stepper motor
01:55 H bridges
03:24 Mechanics
04:12 Plotting a vector graphic
05:22 Drawing a bitmap
05:56 Decorating objects

The project page about the plotter:
http://www.homofaciens.de/technics-machines-plotter-cdrom_en_navion.htm