I needed a larger diameter version of the Prusa spool holder for 2kg spools.
The Original STEP file included in the MK4 version is in bad shape overall, so to do my changes I needed to design a clean model. Basic Shape and dimensions stay more or less the same.
I did print it in ABS. Choose a material which has a good layer adhesion or you will get problems. It is also possible to insert a M8 threaded steel rod.
The author remixed this model.