85mm Filament Clamp Knob

I found some tri-color reels from Reprapper filament had 75mm hub holes which swallow the original 65mm clamp knobs whole… so I re-designed them in 85mm diameter to cover all the bases. The thickness remains 35mm so the taper is shallower but should work great with all sizes of spool hub holes. Related designs: https://www.printables.com/model/354545-base-for-warpsters-automatic-filament-rewinder https://www.printables.com/model/303944-automatic-filament-rewinder-runs-on-marlin https://www.printables.com/model/281332-respooler-v01-rewind-your-filament