Printrbot Simple Metal 100mm Spool Holder

Yes I know another spool holder for the Printrbot Simple metal, but wait I have reasons. I found with a few spools of filament I have bought recently were too wide to fit on the holder properly so knocked this one up.

As with others of this design be careful if your print is tall as the spool tends to get caught by the stepper motor as the z axis rises. I might make another change later to combat that problem.

This is a modification of the previous spool holder I had but can't seem to