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Draw panel, subtract holes union() { cube([board_width, board_height, thickness]); cylinder(thickness+standoff_height, r=standoff_radius, $fn=360); cylinder(h=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 8.99167 3 vertex 8.30722 -3.44096 3 vertex 8.30816 3.43783 3 vertex -8.31492 3.44415 3 facet normal 1.029044e-01 -6.892302e-03 9.946674e-01 facet normal 6.703010e-01 -2.207629e-03 -7.420860e-01 vertex -1.089055e+02 9.695134e+01 1.233171e+01 facet normal -8.715000e-002 -3.880625e-004 9.961951e-001 facet normal 8.706301e-01 -4.919382e-01 3.074473e-04 vertex -9.122290e+01 9.519027e+01 4.255000e+01 facet normal 2.498229e-001 4.371906e-001 8.639750e-001 vertex -3.464629e+000 -2.815020e+000 2.491820e+001 facet normal 5.917222e-02 -3.775003e-03 9.982407e-01 vertex -1.072673e+02 9.695134e+01 8.833620e+00 facet normal 4.391218e-002 -7.528201e-002 9.961950e-001 facet normal 1.376774e-01 2.053091e-04 -9.904771e-01 facet normal -0.951058 -0.309012 9.00916e-06 facet normal 0.828666 0.0815498 0.55377 facet normal -9.999901e-001 -4.452620e-003 0.000000e+000 vertex 2.063766e+000 -6.818795e+000 2.496000e+001 vertex -2.525431e+000 5.022715e+000 2.496000e+001 vertex -7.053316e+000 7.305162e-002 1.747200e+001 facet normal -8.972304e-01 -4.415627e-01 -3.156530e-04 vertex -1.037469e+02 1.022558e+02 2.550000e+00 facet normal 0.417286 0.223045 0.880979 vertex -8.17421 -1.62595 5.74921 facet normal -8.266210e-01 5.627590e-01 1.789245e-04 vertex -1.034402e+02 1.027823e+02 4.255000e+01 facet normal 3.281394e-02 0.000000e+00 9.994615e-01 vertex -1.063774e+02 9.695134e+01 1.152895e+01 facet normal -0.0815232 -0.828672 0.553766 facet normal -2.126167e-001 -3.706483e-001 9.041095e-001 facet normal -0.00906568 -0.644985 0.764141 facet normal -7.070963e-001 -3.148239e-003 7.071103e-001 facet normal 0.382436 0.0376186 0.923216 vertex 8.82707 -1.75581 3 vertex 6.35807 -6.35807 3 vertex 1.75419 -8.81889 3 vertex -4.9955 7.4763 3 vertex -8.30722 3.44096 3 vertex 8.30568 -3.44384 3 vertex 0 2.5 6.5 facet normal 0.95681 -0.29047 -0.0119413 vertex -2.67925 1.10978 19 facet normal 0.421912 -0.362633 0.830956 facet normal -0.260565 0.962889 -0.0703605 facet normal 0.982288 -0.187376 0 facet normal -0.0980088 -0.995114 -0.0119414 facet normal 2.404282e-06 -1.000000e+00 -4.279217e-07 facet normal 5.019341e-001 -8.605046e-001 8.714356e-002 vertex -1.625209e+000 4.817784e+000 2.470218e+001 facet normal 9.013770e-01 -2.530432e-03 4.330278e-01 vertex -1.092681e+02 9.665134e+01 9.961018e+00 facet normal -0.382434 -0.0376662 0.923215 facet normal 0.338901 -0.181187 0.92321 facet normal 2.956752e-001 5.170185e-001 8.032858e-001 vertex -5.102053e+000 -3.029756e+000 2.488918e+001 facet normal -0.840148 0.533173 0.0993848 vertex -7.01045 3.85403 20 facet normal 0.0168607 -0.828714 0.559418 vertex -7.27563 0.849259 7.2866 facet normal -0.21962 0.166294 0.961308 facet normal -8.613212e-01 5.080607e-01 -1.978697e-04 facet normal -0.989338 0.097471 0.108209 facet normal 9.807885e-01 -1.950737e-01 -2.871706e-04 vertex -9.037191e+01 9.730093e+01 2.655000e+01 vertex -9.090395e+01 1.020222e+02 1.055000e+01 facet normal -1.932563e-01 -2.598328e-03 -9.811449e-01 vertex -1.077013e+02 9.695134e+01 1.025489e+01 facet normal -0.977632 0.210322 0 facet normal 0.828666 -0.0815498 0.55377 facet normal -0.302887 0.92061 0.246448 vertex 5.40903 -4.19531 7.56202 facet normal 0.463909 0.883084 0.0703601 facet normal 0.18809 0.243721 0.951432 facet normal -0.734388 -0.392536 0.553706.

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