Ribbed knob for D-shaft 6.35 mm, shallow flat - 4 sizes 16/20/25/30 mm, no supports

Fourteen deep flutes. Grips with oily or gloved fingers, which is why it belongs on machines rather than on a desk. For the 1/4 inch shaft with the shallow flat, 5.5 mm remaining. The other 1/4 inch shape leaves 3.96 mm - measure across the flat before you print. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 16 mm | 17.6 mm | 2.3 cm³ | 2.9 g | | 20 mm | 17.6 mm | 3.4 cm³ | 4.4 g | | 25 mm | 17.6 mm | 4.8 cm³ | 6…

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