Eggbot mini modified arms

I printed the Eggbot but I had to make some changes to work better

1. A new arm for a bigger marker or pencil.
2. A stronger arm for the pen motor (it broke when tightening).
The original is a bit thin around the keyholes.
3. The rotating pen arm with the hole for the motor a little sloped to put the
arm top a little backwards which result in my case in a vertical arm with
the pen right above the center of the egg.