Massive star knob for M10 nut

thingiverse

The available star knobs are always too small and unwieldy for me. This one has a diameter of 60 mm and a height of 40 mm. So the knob fits one hand well and you have an appropriate leverage. The upper side is slightly rounded for a more comfortable grip. Most other star knobs have only a few wings which requires a frequent grasping or bending of the hand.The eight wings on this knob ensure that you always get a wing to grab, even with small turning movements. The wings themselves are sharp-edged to ensure a good grip even in damp conditions. The blind hole has a depth of 36.5 mm with a diameter of 10.5 mm. The hexagonal recess is suitable for a M10 nut according to DIN 934. I have included 200 µm play so that the nut fits tightly. Above the nut is a recess for a washer (DIN 125). I printed the star knob with 50% filling and six walls to give the nut enough support.