Drum knob for Split shaft coarse, 18 teeth - 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 coarse split shaft with 18 teeth, 5.99 mm over the knurl. If your knob rocks on the shaft you have the fine 24-tooth type instead. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 16 mm | 15.6 mm | 2.4 cm³ | 3.1 g | | 20 mm | 19.0 mm | 4.2 cm³ | 5.3 g | | 25 mm | 23.8 mm | 6.8 cm³ | 8.6 g | | 30…

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