I wanted to make something to be able to lay my spool of filament flat on my printer so I can fit it in an enclosure with a low roof. This uses the existing holes and the original screws so you don't need anything extra at all.

This is two parts with the filament_holder being 30.48mm (1.2in) spools and then the adapter being 53.34mm (2.1in) for the use of spools with bigger holes like Hatchbot.

9/18/2016 Added a 36.83mm (1.45in) adapter for rolls that are 1.5in in diameter

11/30/2016 *Added a version with a guide for the filament based off the original. I have not tested this yet since I have no issues with the original one. Version with slot and without slot. *Added 50mm adapter version

Let me know if you think I should make any revisions to the parts or want a different adapter size.