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= [h_margin+working_width/8, row_4, 0]; pwm_cv_lvl = [width_mm - h_margin - working_width/8, row_3, 0]; pwm_duty = [input_column, bottom_row, 0]; c_tune = [width_mm/2, top_row, 0]; left_rib_x = thickness * 1; right_rib_x = width_mm - thickness*2; union() { z_position = sphere_indents_radius + (enable_stem ? Stem_height : 0) + knob_height - cone_indents_cutdepth; for (z = [0 : sphere_indents_count]) { z_position = height * rotate_vector_cos, rotate_vector_sin * height + rotate_vector_sin * height + rotate_vector_sin * height], // top horizontal rib // h_wall(h=1.6, l=right_rib_x); // bottom horizontal rib h_wall(h=4, l=right_rib_x); // middle horizontal rib h_wall(h=4, l=right_rib_x); // middle-bottom h rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib h_wall(h=1.6, l=right_rib_x); // one more.

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