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Structures, or files of the knob. [mm] // Engraving depth. [mm] engraved_indicator_depth = 4.2; /* [External Indicator (optional)] */ // Four hole threshold (HP h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; right_rib_x = width_mm - thickness*2; left_rib_x = thickness * 1; right_rib_x = width_mm - h_margin; left_rib_x = thickness * 1; right_rib_x = width_mm - thickness*2; union() { cube([board_width, board_height, thickness]); cylinder(thickness+standoff_height, r=standoff_radius, $fn=360); cube([cutout_width, cutout_height, thickness+3]); cylinder(h=thickness+standoff_height+3, r=hole_radius, $fn=360); vertex 0 -6.2584 7.81508 facet normal 4.667715e-001 8.177221e-001 3.368307e-001 vertex -5.001678e+000 -2.971207e+000 2.473857e+001 facet normal 0.439084 -0.687856 0.577979 facet normal -1.437965e-001 9.896073e-001 0.000000e+000 vertex 7.028635e+000 -1.032301e+000 1.747200e+001 facet normal -0.361949 0.422682 0.830862 vertex 5.54554 -4.83932 6.98393 facet normal 0.061823 -0.114014 0.991554 facet normal 8.724512e-001 3.884962e-003 4.886858e-001 facet normal -0.590357 -0.804069 0.0703596 facet normal -1.773463e-001 -3.077139e-001 9.348050e-001 vertex -5.017667e-003 4.837887e+000 2.495400e+001 facet normal 4.719131e-001 -8.074538e-001 3.540005e-001 vertex -4.030328e+000 2.279323e+000 2.476740e+001 facet normal -0.834607 0.26838 0.481043 vertex -6.45682 -0.18558 7.32632 vertex -4.81447 4.25586 7.51797 facet normal -9.777786e-001 -4.353410e-003 2.095953e-001 vertex -4.016004e+000.

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