A 1 piece reel that has planetary gears as bearings.
Has shaft that extends to one side. This is to be used to hold onto it while other hand rotates the reel. Reel has knob.
After print, gears should break away fairly easily. The shaft may need to be hammered out. Knob has to be rotated free with a plier.
30 to 40 % infill should do.
planetary_reel_v3.stl | 27.6MB |