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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 -9.14279 3.76384 vertex -8.81405 -1.79875 3.82299 facet normal 0.46415 -0.23112 0.855072 facet normal -0.175905 0.796857 0.577993 facet normal -0.0979739 -0.995118 -0.0119198 facet normal 0.0822243 0.0560592 -0.995036 vertex 8.08754 -5.87293 0.0486796 facet normal 0.95694 -0.290287 0 vertex 5.66146 -8.47298 0 vertex -2.3097 0.956708 6.5 vertex -2.5 0 6.5 vertex -2.45196 -0.487725 6.7 vertex 1.76777 -1.76777 6.5 vertex 1.76777 -1.76777 6.7 facet normal -6.630440e-08 -1.000000e+00 -7.407008e-07 facet normal -0.362633 -0.421912 0.830956 facet normal 0.194778 -0.980847 0 vertex 10.1521 0.388301 2.19603 facet normal -0.0357185 0.453753 0.890411 vertex 4.66156 1.65141 19.1916 facet normal 9.999901e-001 4.452774e-003 -0.000000e+000 vertex 4.148033e+000 5.705007e+000 2.496000e+001 vertex -5.550534e+000 -1.056204e+000 2.496000e+001 vertex 2.063766e+000 -6.818795e+000 1.747200e+001 facet normal -1.691408e-02 0.000000e+00 -9.998569e-01 facet normal -8.478333e-13 -1.000000e+00 -6.131717e-16 vertex -1.084402e+02 9.665134e+01 1.109822e+01 vertex -1.084398e+02 9.725134e+01 1.062078e+01 facet normal 6.745645e-14 -1.000000e+00 -2.379658e-13 vertex -1.043454e+02 9.725134e+01 1.169302e+01 facet normal -0.16181 -0.533415 0.830233 vertex -3.49879 -8.44684 3.76384 vertex 4.96056 -7.50438 3.82299 facet normal -0.115803 -0.000209061 0.993272 facet normal 9.407383e-01 1.422781e-02 3.388348e-01 vertex -9.038341e+01 1.005513e+02 1.203784e+01 vertex -9.043219e+01 1.005513e+02 1.192535e+01 facet normal -0.260332 -0.938729 0.225866 vertex 1.0528 -7.12884 7.81019 facet normal -0.0357195 0.453754 0.890411 facet normal 0.472795 -0.88053 0.0336363 facet normal 0.768363 -0.630808 0.108162 facet normal 4.116387e-001 -7.082235e-001 5.735618e-001 vertex -7.571636e-001 5.367021e+000 2.480400e+001 facet normal -0.989344 -0.0974275 0.108195 facet normal 0.0972815 -0.989353 0.108241 facet normal -0.0462166 -0.587101 0.808194 facet normal 1.344394e-14 -1.000000e+00 -4.818971e-15 facet normal -0.439084 0.687856 0.577979 facet normal 0.114117 0.0998673 0.988435 facet normal 0.634321 0.772977 -0.011946 facet normal -8.242445e-001 -5.662341e-001 0.000000e+000 vertex -3.984918e-003 4.605903e+000 -1.681500e-003 vertex 5.029959e+000 2.880271e+000 2.464800e+001 facet normal 0.834607 0.26838 0.481043 vertex 6.45682 0.18558 7.32632.

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