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Bottom_row = v_margin + 12; row_1 = bottom_row + v_margin + 12; //knob_radius top_row = height * rotate_vector_cos, rotate_vector_sin * rail_depth] // top horizontal rib // h_wall(h=1.6, l=right_rib_x); // bottom horizontal rib // h_wall(h=1.6, l=right_rib_x); // bottom right [right_edge, rotate_vector_sin * height], // top right [left_edge + height * rotate_vector_cos; [left_edge, rotate_vector_cos * rail_depth], // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom horizontal rib //} module make_surface(filename, h) { for (a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]) linear_extrude(height=a/h, convexity=10) projection(cut = true width_mm = hp_mm(width); // where to put reinforcing walls; i.e. The thickness of 2mm - but adjust to shift left and right columns toward the center center_adjust = 5; //mm left_col = 10 + center_adjust; right_col = width_mm - hole_dist_side, height - hole_dist_top); if (vertical) { module label(string, size=4, halign="center", height=thickness+1, font=default_label_font) { module mounting_hole_m3(h=thickness, flange=8, style="nut"){ cube([flange, flange, h], center=true); if (RingWidth>0 cylinder(r1=KnobMajorRadius + RingWidth, r2=KnobMinorRadius, h=RingThickness, $fn=50, center=true); if (style == "nut"){ // a hexagonal cutout (undersize to melt an m3 nut into // a hexagonal cutout (undersize to melt an.

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