row_2 = row_1 + vertical_space/7; row_7 = row_6 + vertical_space/7; row_6 = row_5 + vertical_space/7; cv_in_1a = [left_col, row_3, 0]; pwm_duty = [second_col, third_row, 0]; saw_out = [output_column, row_2, 0]; fm_lvl = [second_col, second_row, 0]; //Third row interface placement fm_in = [first_col, third_row, 0]; //Fourth row interface placement f_tune = [width_mm/2 - h_margin, top_row, 0]; left_rib_x = hole_dist_side + thickness; v_margin = hole_dist_top*2; output_column = width_mm - thickness*2; // draw panel, subtract holes // label the whole thing? // surface("FIREBALL VCO.png", center=true, invert=false); } module railSet(height) { railWithHoles(height.