Printable Robot Arm - Rotary plate

I finally got the rotary plate working. Powered by a standard Nema17 stepper motor.

http://youtu.be/H4VPjmx2Mjo

This part 3 of my robot arm project you can find the other parts here:
http://www.thingiverse.com/thing:591230
http://www.thingiverse.com/thing:601036

Remeber this is not a final "product" it is still much work to do.

I started a hackaday project:
http://hackaday.io/project/3800-3d-printable-robot-arm

You can find a overview on my blog:
http://chaozlabs.blogspot.de/2015/01/3d-printable-robot-arm.html