After bying a Fysetc Encloser for my Prusa MK4 I faced a problem with the engeneering decision for the spool holder. I didn't like the solution of Fysetc - a long PTFE tube, etc. etc. The original prusa spool holder could not be used, as the distance from the printer's upper frame to the upper part of the enclosure is smaller and a normal spool Ø200mm can not fit. So I made a double spool holder, which is a little more bend to backside. The spoolholder has two spool guides as well.

Printing with PETG (GD Filament), 0.4, 2 walls, 15% infill, support is needed. printing time about 5 hours (Bambulab X1C).