About this 3D model

This is a test machine for mobile readers (like Squareup or PayPal Here). It consists: 1. STM32VLDISCOVERY 2. mobile reader 3. phone 4. tamiya reductor from a toy 5. reeds with magnet 7. https://github.com/evsinev/stm32-servo-arm Rack and Gear are based on http://www.thingiverse.com/thing:5505 Tester in action http://www.youtube.com/watch?v=9QPTB-jzgfo and http://www.youtube.com/watch?v=O_V5czH0LhM