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

A tall drum with round ribs. All that shell area is what makes a slow, fine turn possible - volume, feed, focus. For the 1/4 inch shaft with the deep flat, 3.96 mm remaining. Careful: 1/4 inch D-shafts come in two shapes. If your flat leaves about 5.5 mm, you want the shallow-flat version of this knob instead. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 16 mm | 17.6 mm | 2.8 cm³ | 3.6 g | | 20 mm | 19.0 mm | 4…

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