I made this remix because the filament spool was constantly spinning and the filament got stuck
I really like the @CadeyzDad model mechanism, but I do not like the location, the @ThomaS_ model was the first thing I printed and I like the location of the tube guide.
The other parts are found in @CadeyzDad model
https://www.printables.com/model/658654-k1-max-side-spool-holder/files
The author remixed this model.
I used these two models to create one with the location that I like