Drum knob for Knurled shaft 6 mm, 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 18-tooth knurled 6 mm shaft - the metric one, found on most imported pots. Press-fit, no screw. The teeth run 8 mm deep because that is how far the knurl reaches on the shaft; beyond it the bore is clear, so the knob does not bind on the smooth part. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---|…

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