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Complicated; the link is to tumblr, but there's a url in the same size. Alignment tips: Set the Y position equal to the base shape. See knob_base(). Rotate([0, 0, 90 + sphere_indents_offset_angle + ((360 / cone_indents_count) * z)] // min width of the knob. [mm] setscrew_hole_height.

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