EeezyBot-Arm (Remix)

This is a remix of the EEzyBotArm by daGHIZmo.

The original works well, but its bolts are very large (4mm) for my opinion. I changes it to 3mm-bolts, and avoided nuts where it was possible. So there are threads in the plastic, you can just use screws and turn them in.
The gears on the claw were very hard to turn, so my bad servos did not get the claw openened or closed. I changed the gearing to be less hard.
The servo-gear (driving-gear in original) was changed to a thing that should fit an almost any cheap servo on the market.