Universal Spool Holder (Parametric)

New version with upper limits removed and smoother threading. If you, like me, hate dangling spool on the original holder, here is the solution. A universal threaded spool holder, simply fitting on the existing spool axe. Nut's neck length can be set to adapt to any spool width. Included optional washer, adding a slight gap to avoid holder rubbing on the stand. Can be printed using any filament type. No support needed (check plate setup picture) except for Fixed Plugs part : support paint the plugs, and set support to Tree, checking only Support critical regions only. Now fully parametric to be set to any desired size. Standard values : A1 : diameter 24mm, Len 71.5mm A1 Mini : diameter 17.5mm, Len 68mm Some limit values apply : Len must be ≥ 45mm Diam must be ≥ 5mm and ≤ 25mm Neck must be ≥ 0.1mm Installation : Simply interlock the two spool holder parts on the spool axe, adding the two washer parts before final pressing