A 3D printed EEZYbotARM solves a 3D printed Tower of Hanoi.


QTY Part Description
4 Hextronik MG-14 14g/2.2kg/0.11sec MG14
1 Mini Maestro 12-Channel USB Servo Controller (Assembled)
1 AC to 5A 10A DC Adapter
1 Raspberry Pi 3 Model B+


3D Printed Parts

The models for the EEZYbotARM can be found at I printed the parts out of PETG.


The robot's performance can be a little bit finicky. After all, it is running open loop on some of the cheapest RC servos imaginable.

To better cope with error, my Towers of Hanoi Model has tapered parts that allow for some slop. It is also important to fix the arm down (Newton's 3rd Law).

Source Code

Source code can be found at

Tower of Hanoi Model

Models can be found at