Of course the Arduino and motordriver dont find place in the standard housing they are glued in a box on the side of the servo. B.T.W you just dont tell it to go to zero after a 10 hour print :-).

Schematic of the Arduino Solar Tracker Circuit. As you can see in the schematic all that you need to make the electrical part is the board, one servo, 2 LDRs and 2 x 10K resistors. Usually the servo ...

The line drawings are converted to coordinates, and sent to an Arduino, which controls all the motors that move the pen. [Niazangels] went with Dynamixel closed loop servo motors rather than the ...