row_2 = row_1 + vertical_space/7; row_3 = working_increment*2 + row_1; row_3 = row_2 + vertical_space/7; cv_in_1a = [left_col, row_3, 0]; pwm_duty = [second_col, third_row, 0]; fm_lvl = [h_margin+working_width/8, row_2, 0]; pwm_in = [input_column - h_margin/2, row_1, 0]; pwm_in = [input_column - h_margin/2, bottom_row, 0]; c_tune = [width_mm/2, top_row, 0]; left_rib_x = thickness * 2; right_rib_x = width_mm - h_margin; working_height = height - v_margin - title_font_size*1.5; top_row = height - v_margin - title_font_size*1.5; saw_out = [h_margin + working_width/4, row_1, 0]; saw_out = [output_column, bottom_row, 0]; c_tune = [width_mm/2 - h_margin, top_row, 0]; f_tune = [width_mm/2 - h_margin, top_row, 0]; f_tune = [second_col, third_row, 0]; fm_lvl = [second_col, first_row.