JLCPCB for $2 PCB Fabrication & 2-day Build Time on https://jlcpcb.com
Project: http://www.ardumotive.com/news/3d-pri...
3D Files can be found here:
https://www.thingiverse.com/thing:306...
Micro DC motor with gearbox:
https://grobotronics.com/micro-metal-...
More info at http://www.ardumotive.com