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// build up seven rows; middle one unused row_1 = bottom_row + v_margin + 12; //knob_radius top_row = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", hole_dist_side, height - v_margin - title_font_size*1.5; saw_out = [output_column, bottom_row, 0]; pwm_pot = [input_column - h_margin/2, bottom_row, 0]; c_tune = [second_col, first_row, 0]; c_tune = [second_col, first_row, 0]; c_tune = [width_mm/2, top_row, 0]; left_rib_x = thickness * 1; //right_rib_x = width_mm - right_rib_thickness; // projection: make a 2d version v_wall(h=4, l=height-rail_clearance*2, th=right_rib_thickness); //outline of whole PCB cube([137.5, 97, 1], center=true.

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