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Grounding: ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, retention spring instead of the rail + a safety margin // margins from edges h_margin = hole_dist_side + thickness; v_margin = hole_dist_top*2 + thickness; working_height = height - v_margin*2 - title_font_size*1.5; working_height = height - v_margin - title_font_size*2; 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 8.88682 5.07603 facet normal -0.290276 -0.956943 0 vertex -0.388301 -10.1521 0 facet normal -0.436801 0.865139 0.246453 vertex -0.953609 -6.96854 7.5827 vertex 6.7445 -0.892525 7.76535 vertex -4.19817 -5.60068 7.78686 vertex 4.2532 -5.60181 7.5827 vertex -0.892525 -6.73225 7.87036 facet normal 9.527696e-01 3.036928e-01 8.499575e-04 vertex -1.041733e+02 9.652563e+01 1.055000e+01 facet normal -0.223441 0.736595 -0.638358 vertex 1.17054 5.88471 6.59 facet normal 1.458075e-15 -1.388642e-15 -1.000000e+00 vertex -1.103843e+02 9.927855e+01 1.638621e+01 facet normal -2.537094e-001 4.349532e-001 8.639718e-001 facet normal -5.393305e-002 -9.438277e-002 9.940740e-001 vertex 3.538386e+000 2.819248e+000 2.495526e+001 facet normal -0.0243222 0.308979 0.950758 facet normal -0.768578 0.632004 0.0992881 vertex -5.83175 -5.47638 20 vertex 6.54872 -1.35564 20 vertex 2.76756 5.88138 20 vertex -3.48287 5.48813 20 vertex 6.82354 0.787456 20 vertex 6.75972 -0.941529 20 vertex 6.3102 1.67508 20 vertex 6.75972 0.941529 20 vertex 6.91689 0.398636 20 vertex 6.82354 0.787456 20 vertex -4.14326 5.00834 20 vertex -3.48287 5.48813 19.9 facet normal -3.664369e-001 -9.304429e-001 0.000000e+000 vertex 3.252574e+000.

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