Customizeable Flashforge Creator Pro Easy Spool Holder

NOTE (Oct 2016): for an alternative design that uses bearings to minimize the friction please see here http://www.thingiverse.com/thing:1728291 . This simpler design here should work just fine though.

This customizable spool holder fits those Flashforge Creator Pro 3D printers models that come two horizontal slots at the back.

This design uses a new U shape hanger that makes the insertion and removal of the spool holder much easier. My printer is located about one spool width from a wal