A 20mm spool cap for machines with a 5.5 spool rod.

I recently bought a second hand Husqvarna Viking HClass 100Q but it was missing the smaller spool cap.  So I modeled the larger spool cap and reduced the base diameter.  This should fit quite snugly on the rod as the “prong” diameter is just a fraction under 5.5mm.

I also parameterised the model so if you need a larger or thicker base, taller prongs, or your machine has a rod with a different diameter it should be possible to change the parameters accordingly.