Rigidbot spool holder cap- fits 8mm rod - adapted for mounting on back

Easily change spools by just lifting one end of the bar. This works with either an 8mm rod (like the one that comes with the stock spool holder) or a length of 1/2 inch pvc pipe as the spindle. Fits on top of the .75" square tube uprights of the the stock holder. (Print two copies - one for each end of the rod)

This is a remix that lets you mount the spool on the back or the front of the ridigbot using the original rod