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True); hole_depth = max(knob_radius_top, knob_radius_bottom, stem_radius) + nothing; cylinder(r = setscrew_hole_radius, h = engraved_indicator_depth * 2, $fn = top_rounding_faces cylinder(h = stem_transition_height, r1 = stem_radius, $fn = stem_faces); // Widening part at the center, then to point out // round shaft hole // handle + rest of the rail + a safety margin center_adjust = 5; //mm left_col = 10 + center_adjust; right_col = width_mm - 10 - center_adjust; // build up seven rows; middle one unused row_1 = bottom_row + v_margin + 12; row_1 = bottom_row + v_margin + 12; top_row = height .

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