Star knob for Round shaft 4.0 mm - 4 sizes 20/25/30/36 mm, no supports

Five soft lobes. The shape you reach for when a knob has to be turned hard but must not cut into the hand. For plain 4 mm shafts, held by an M3 grub screw. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 20 mm | 13.6 mm | 2.1 cm³ | 2.7 g | | 25 mm | 13.6 mm | 3.7 cm³ | 4.7 g | | 30 mm | 15.0 mm | 5.5 cm³ | 7.0 g | | 36 mm | 18.0 mm | 8.2 cm³ | 10.5 g | Bore measured on the finished solid: 4.20 × 4.20 mm. ## The fi…

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