Ball 40 mm with M5 tap hole – tap your own thread, flat base

A 40 mm ball with an M5 tap hole – tap the thread by hand, then screw it onto an M5 screw or rod. M5 is too fine to print; a cut thread holds better. **Uses:** replacement ball knob for a lever; cap for M5 screws and threaded rods. ## Dimensions (measured on the CAD solid) | | mm | |---|---| | Ball Ø / height on the base | 40 / 38.86 | | Flat base Ø | 13.33 | | Tap hole Ø in the model | 4.4 for M5 | | Usable depth / cone tip | 20 / 22.2 | ## Cutting the thread Modelled at 4.4 mm, as printed hol…

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