Casement Window Knob

thingiverse

Had an annoying battle with a couple casement windows in my workshop that the crank handles were just in the way and one was stripped out, so i made this up really quick, a little loctite on the center and then a shorter screw with a washer fastened it to the window crank shaft and now its a nice low profile crank that doesn't slip. Hint... These are made for a TIGHT fit on the shaft, so what i did was heat the center with a hot air gun and then press fit them on and let cool, added a drop of loctite for extra measure and then replaced the original screw with a shorter one and a washer. If you need the center bigger you could just stretch the model a few percent when slicing.