Rigidbot Spool Bar Holder

The Rigidbot comes with a spool holder, but getting the spool in and out is quite a pain. This holder fits on top of the square tube, and allows the spool bar to be easily placed and removed. You'll need to print two of these.

Similar to http://www.thingiverse.com/thing:407166, but mine doesn't fit a 1/2 inch PVC pipe and is smaller.