The support is based on a design of "hackele" (this is a remix).
Both of the arms are identical to the original but the shaft is completely new. Now is a cylinder. It is easy to put and remove the spool over the arms using your fingers into the cylinder.
Cylinder length 112mm; 132mm; 152mm
Added 114mm and 144mm.
Resolution 0,3 mm.
Shaft infill 100% (due to the solid design is faster than other % infill).
Arms infill 20%