Hai,
I love tsp drawings, for this you have only 2 servos needed because the pen should not go up or down?
Here's a simple Drawing Robot Arm with two standard servos and arduino uno
A have no program, I hope find a volunteer hier to can write a program to intrepeteren G-Code
To test that everything works smoothness you can use a program http://www.thingiverse.com/thing:201807/ # files
Who help with a programma in Arduino, sorry I'm just a beginner in programmer
I want to see if it works well, who can help with the program
Kind Regards

The two arms are 140mm long and 30mm width
Center point to center point is 100mm