I found printing the original design problematic, so I cleaned up the problem areas.

Hook now more aligned with upright.

Both sides of hook smoothed.

Cerves removed from upright.

Still needs most of a 200x200mm bed to print. I DO print the Prusa version on my Prusa.

Still holds common 1kg spools, Pictured 1.5kg spools and EckerTech 2kg spools.

Still recomending filament guide.(thing:16267 V4)

Scad file still makes all versions:
Set spacer=2 for Prusa clip-on hook.
Set spacer=1 for EcksBot intigrated hook. Replaces spacers.
Set spacer=0 for EcksBot clip-on hook. Clips onto spacers

Now available pre-printed at gkprotoforms.ca