This Spool Holder was designed to be snap together other than the washer on the end of the spool shaft which will need super glue (I have variable widths so I clearanced it for adjustment). You will need to print 2 of the uprights as they are the same left to right. It has a snap on filament guide that is designed with a 9.65mm hole so a "Push to Connect" air fitting will thread in and you can run your filament through plastic air line.
Atomic Filament PETG
All .STL files should be correctly oriented.