DC motor 3D printer
From emboxit
- http://hackaday.com/2015/01/20/closed-loop-control-for-3d-printers/
- http://www.3ders.org/articles/20150122-add-a-closed-loop-control-to-your-3d-printer-and-never-worry-about-missed-steps-again.html
- https://www.youmagine.com/designs/dc-motor-closed-loop-control-software#!design-information
- read the forum
- https://github.com/danithebest91/ServoStrap
- http://elm-chan.org/works/smc/report_e.html
