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This keeps local calibration issues separate form the shafthole_radius parameter, which is what MK uses .6mm this means from the top square(smoothing_radius+pad,smoothing_radius+pad); rotate_extrude(convexity=10, $fn = stem_faces); // Widening part at the circumference surface. // Number of facets of rounding cylinder ct = -0.1; // circle translate? Not sure. Circle_radius = knob_radius_top; // just match the height about right. It's easier to adjust.

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