Robo 3D - Spool Roller

Before printing please arrange and move parts for printing.
The other side of the body has to be mirrored.

This is mine Spool Roller. It will work with any spools. The one that I download it, had a problem that the roll I have which has 20 mm opening and other roll is large opening. The one that are over the printer have a problem with pulling the filament because of the angle that has to pull.
I used a lower part from (http://www.thingiverse.com/thing:1530572) just to get measurement. Remo