Hanging wall plotter (V plotter) with a Raspberry Pi

Table Of Content: 00:05 Introduction 01:08 Electronics 02:39 Mechanics 04:31 Point of origin 05:29 Plotting text lines 06:29 Accuracy 08:09 Drawing a coloured Raspberry 09:18 Improved version The project page about the V plotter: http://www.homofaciens.de/technics-machines-v-plotter_en_navion.htm