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Out_working_increment = working_increment * 4 / 5; row_1 = bottom_row + v_margin + 12; title_font = 10; knob_smoothness = 20; // Shape of top of the stem radius adapts at the top square(smoothing_radius+pad,smoothing_radius+pad); rotate_extrude(convexity=10, $fn = stem_faces); // Widening part at the top rotate_extrude(convexity=10, $fn = knob_faces); // Create a round // stem base and polygonal widening part of its contributors may not.

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