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Working_width = width_mm - thickness*2; // 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 -9.96384 2.94279 facet normal 0.952375 0.288902 0.0975576 vertex -8.33262 -3.38578 4.51215 facet normal 0.773053 -0.634341 -5.92546e-06 facet normal 0.0153859 0.484645 0.874575 facet normal -2.187760e-01 8.494291e-03 -9.757381e-01 facet normal 1.413055e-15 -1.598987e-15 -1.000000e+00 facet normal -4.415277e-01 4.612447e-03 8.972358e-01 facet normal 0.000349206 0.11558 0.993298 vertex -0.896427 -6.72966 7.87006 facet normal 0.990437 0.097551 0.0975617 facet normal -0.290244 -0.950506 0.110892 facet normal -9.198330e-01 -3.923101e-01 2.985835e-04 vertex -1.039194e+02 9.589675e+01 4.255000e+01 facet normal -0.877365 0.466834 0.110891 facet normal 0.247514 0.963781 0.0993082 facet normal -0.768773 -0.630299 0.108219 facet normal 0.15129 0.0100873 0.988438 facet normal -0.165337 0.688668 0.705975 vertex 4.78065 -2.40334 19.8418 facet normal 0.0572764 0.187658 0.980563 facet normal 0.0726013 0.0570302 0.995729 facet normal 0.000664863 0.116361 -0.993207 vertex 1.02637 -5.38893 21.833 facet normal -9.999901e-001 -4.452620e-003 0.000000e+000 vertex -9.918118e-002 5.624815e+000 1.747200e+001 facet normal 0.06948 0.7054 0.705395 facet normal -4.868858e-001 -8.510721e-001 1.965158e-001 facet normal -0.95681 -0.29047 -0.0119413 facet normal -0.479685 -0.847874 0.225859 facet normal 3.370504e-001 5.903097e-001 7.334381e-001 vertex 3.789905e-002 -4.800489e+000 2.490742e+001 facet normal -0.990437 -0.097551 0.0975617 facet normal -0.382437 -0.0376526 0.923214 facet normal 0.5865 0.714682 0.381114 facet normal -2.475953e-01 7.020816e-03 -9.688381e-01 vertex -1.078264e+02 9.665134e+01 1.028031e+01 vertex -1.084024e+02 9.725134e+01 1.055388e+01 facet normal 0.277896 0.916106 0.289006 facet normal -4.269733e-001 9.042642e-001 0.000000e+000 vertex -1.851797e+000 6.779951e+000 2.496000e+001 vertex 5.558580e+000 1.123793e+000 2.496000e+001 vertex 1.380968e+000 -5.529187e+000 2.496000e+001 vertex 1.726210e+000 -6.911484e+000 2.496000e+001 vertex -5.970783e+000 3.719342e+000 2.496000e+001 vertex -6.866518e+000 -1.662893e+000 1.747200e+001 vertex 3.426833e-001 -7.112523e+000 1.747200e+001 facet normal -2.476527e-15 -5.590488e-15 1.000000e+00 facet normal -3.176384e-001 -1.414236e-003 9.482109e-001 vertex 4.202182e+000 -8.358545e-001 2.494118e+001 facet normal.

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