This model is replaced by https://www.printables.com/model/279032-perfect-master-spool-v5
This model still works but it is a old model.

This is a smart master spool i designed from scratch
it is easy to print , quick to print and just works

it got a quick release system so you can easy swap to other filament, and it is a quick and easy print 

the design also allows it to be compact or in case it “breaks” to just print a part of it

as it only exist out of 3 parts , where one part is exactly the same as the other part so you only need 2 files

The print is tested in PETG, but it should also work in PLA or other filaments

You only need to add manual supports to the hooks so it can print nice and flat

Spool was test printed ( and still using ) with the following settings

Layer height = 0.16mm
infill = 5%
Type = Gyroids
Printers tested = Prusa MK3S and MK3 , Ender 3 , JGMaker Artist 3D
Filament Tested = VPS Data PETG Clear / Black / White

Added 3 new Top parts
those are now 5 mm, 7 mm and 9 mm thick instead the default 3 mm

Greetings from PowerChaos