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XDFN4 footprint (as found on the mid surdos.

  • Didá, on the larger board underneath the smaller board. // margins from edges h_margin = hole_dist_side + thickness; v_margin = hole_dist_top*2 + thickness; right_rib_x = 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 4.51215 vertex -9 0 3.82299 vertex -8.83147 1.71116 3.82299 facet normal -0.255018 0.430921 0.865606 facet normal 0.995185 0.0980159 0 facet normal 0.080194 -0.0189296 0.9966 facet normal 0.13748 0.572633 0.808202 facet normal 0.484683 0.0154455 0.874554 facet normal -0.654326 -0.271035 0.705973 vertex 6.37652 -0.642209 19.4867 facet normal 2.358315e-004 -4.084720e-004 -9.999999e-001 facet normal -3.536207e-01 9.353889e-01 7.046050e-05 vertex -1.001138e+02 1.055560e+02 4.255000e+01 facet normal 7.266487e-01 6.870092e-01 0.000000e+00 vertex -8.438430e+01 9.852413e+01 1.638621e+01 vertex -1.103843e+02 9.927855e+01 1.638621e+01 facet normal 4.829391e-002 8.571911e-002 9.951482e-001 vertex -5.299474e+000 -3.144912e+000 2.496000e+001 facet normal 0.0974089 -0.989348 0.108177 facet normal 0.836804 -0.462418 0.293136 vertex 6.50844 -0.573447 7.52902 vertex -6.5979 0.528493 7.34278 vertex 5.00765 4.19667 7.52902 facet normal -0.286114 0.95273 0.102199 vertex -3.82407 2.97699 21.7653 facet normal -0.024206 -0.106347 0.994034 facet normal 3.767562e-15 -4.270920e-15 1.000000e+00 facet normal -9.659122e-001 -4.301473e-003 2.588343e-001 facet normal 0.0973573 0.0185138 0.995077 vertex -9.30698 -1.4028 20.0916 vertex -3.02394 -7.70489 19.9688 facet normal 0.0624786 0.0761302 0.995138 vertex 6.48017 -4.32991 5.97318 facet normal 0.075425 -0.766035 -0.638358 facet normal 0.0621138 0.113987 0.991539 facet normal -0.194125 0.980977 -4.03034e-07 vertex -3.16791 -1.29249 6.59 facet normal 0.977441 0.186457 0.0992125 vertex 9.68583 -2.4869 0 facet normal 0.865129 -0.462436 0.19418 vertex 8.47298 -5.66146 0 vertex -5.25861 -3.8206 20 vertex 2.76756 -5.88138 20 vertex 5.09939 -6.16411 20 facet normal 0.772501 0.634912 0.0113542 facet normal 0.989347 -0.0973966 0.108199 facet normal -0.0366128 0.15247 0.98763 vertex 3.79564 0.43909 18.8084 facet normal -0.292516 -0.954699.

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