This is fully functional adaptation of the remarkable Memory Orb for 3D printing. The original build thread can be found on therpf.com. www.therpf.com/showthread.php?t=289943.
Please find details there.
video: www.youtube.com/watch?v=MpHZvnaVrHk
Adafruit:
Lithium Ion Cylindrical Battery - 3.7v 2200mAh
PowerBoost 1000 Charger - Rechargeable 5V Lipo USB
USB Micro-B Breakout Board
5x DFRobot Micro DC Geared Motor 6V 96RPM
3x Micro DPDT switches
Creative Commons Attribution Noncommercial Share Alike
