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Draw panel, subtract holes 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 7.5203 6.0001 facet normal -0.555572 -0.831469 2.57619e-07 facet normal -0.191481 -0.962628 -0.191527 facet normal -0.768483 -0.630654 0.108209 facet normal 8.707612e-01 -1.569950e-03 4.917037e-01 vertex -1.091710e+02 9.725134e+01 9.774870e+00 facet normal -0.175905 -0.796857 0.577993 facet normal -0.175905 0.796857 0.577993 facet normal 0.652531 -0.754488 -0.0703586 facet normal 8.191528e-001 3.647532e-003 5.735638e-001 facet normal 0.555572 -0.831469 2.57619e-07 facet normal -0.172963 0.0922671 0.980597 vertex -5.35022 -5.0946 6.88312 facet normal 1.028868e-001 9.946930e-001 -0.000000e+000 vertex 5.645941e+000 5.707424e-001 1.747200e+001 facet normal -0.844851 -0.256282 0.469623 vertex -8.21035 -3.40084 5.07603 facet normal 0.779905 0.400414 0.481058 vertex -4.25586 -4.81447 7.51797 facet normal -0.706045 -0.0555529 0.705985 vertex 4.4 1.22459 18.9636 vertex 4.28314 -0.737827 18.8084 vertex 3.19049 0.191567 18.9636 vertex 4.4 -1.672 19.1916 facet normal 0.0972815 0.989353 0.108241 facet normal -8.332533e-02 9.965224e-01 2.477165e-06 vertex -9.778416e+01 1.060829e+02 4.255000e+01 vertex -9.024783e+01 9.979898e+01 4.255000e+01 facet normal 0.64375 0.528267 0.553643 facet normal 9.460989e-001 3.238778e-001 -0.000000e+000 vertex.

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