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= knob_faces); // Create a hole with radius: ", hole_r , " at ", hole_dist_side, height - v_margin; working_increment = working_height / 6; // Depth of the arrow. Scale([engraved_indicator_scale * 0.3, engraved_indicator_scale * 0.3]) union() { difference() { difference() { union() { shape(fsh, cird+cdp*smt/100, cord, cfn*4, chg); module shape(hsh, ird, ord, fn4, hg) { x0= 0; x1 = hsh > 0 ? Ird : ord; x2 = hsh > 0 ? Ird : ord; x2 = hsh > 0 ? Ord : ird; y0=-0.1; y1=0.

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