Drum knob for D-shaft 6.0 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 deep-flat 6 mm shaft that leaves only 3.99 mm, not the usual 4.5 mm. A knob bored for 4.5 spins on this shaft - that half millimetre is the whole difference between fits and does not fit. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 16 mm | 17.6 mm | 2.8 cm³ | 3.5 g | | 20 mm | 19.0 mm | 4.2…

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