Dome knob for D-shaft 8.0 mm - 4 sizes 20/25/30/36 mm, no supports

A dome over a knurled band. The dome is deliberately flatter than a hemisphere: a true half-sphere would print at 65 degrees of overhang and need supports. For 8 mm shafts with a flat, as used on appliance and valve spindles. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 20 mm | 19.6 mm | 3.5 cm³ | 4.5 g | | 25 mm | 19.6 mm | 5.3 cm³ | 6.8 g | | 30 mm | 19.8 mm | 5.6 cm³ | 7.1 g | | 36 mm | 23.8 mm | 8.1 cm³ | 1…

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