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Board. // margins from edges v_margin = hole_dist_top*2; left_rib_x = thickness * 1.2; right_rib_x = width_mm - thickness*2; // How much horizontal space needed for left-hand and right-hand sub-panels right_panel_width = width_mm - hole_dist_side, height - v_margin; working_increment = working_height / (8+tolerance/5); // generally-useful spacing amount for vertical columns of stuff // How much horizontal space needed for left-hand and right-hand sub-panels right_panel_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 -7.5203 6.0001 facet normal -0.114155 0.990968 0.0703598 facet normal 0.367809 0.00348095 0.929895 facet normal 0.195101 -0.980783 -5.85608e-06 vertex 0.4 3.34543 14.8152 vertex -1.31069 3.16429 9.425 vertex 0.4 2.99543 18.8172 facet normal -0.772589 -0.634804 0.0114014 facet normal 0.0980097 0.00965279 0.995139 vertex -5.23977 -5.38158 6.0001 facet normal 0.768246 -0.629688 0.115285 facet normal 0.528267 -0.64375 0.553643 facet normal 0.561108 0.299919 0.771496 vertex -6.05401 6.05401 5.56266 facet normal -0.471401 0.881919 0 vertex -1.29095 3.16821 18.1498 facet normal 0.15155 0.00987306 0.9884 vertex 0.221399 -7.2243 6.88859 facet normal -0.195093 -0.980785 -7.41558e-06 vertex 0.4 -3.34544 13.7091 vertex 0.4 -3.09564 18.7502 facet normal -2.121107e-001 3.654880e-001 9.063264e-001 vertex -2.588141e+000 4.431215e+000 2.491820e+001 facet normal -1.575939e-001 -2.757894e-001 9.482111e-001 vertex 2.091473e+000 3.597653e+000 2.494118e+001 facet normal -4.496505e-001 -7.868879e-001 4.226369e-001 facet normal -4.552437e-01 8.903669e-01 9.217512e-05 vertex -1.008355e+02 1.052120e+02 4.255000e+01 facet normal 0.464687 0.69545 -0.548101 facet normal -0.0376859 -0.272878 0.96131 facet normal -3.869899e-01 -4.664121e-03 -9.220722e-01 vertex -1.054471e+02 9.695134e+01 1.272474e+01 facet normal 0.876742 0.46863 0.108209 facet normal -8.592839e-01 -4.190219e-03 -5.114818e-01 vertex -1.073398e+02 9.725134e+01 5.413272e+00 vertex -1.074403e+02 9.665134e+01 5.581992e+00 facet normal -0.362975 0.678811 -0.638329 facet normal 4.957559e-001 8.675730e-001.

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