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If distribution of derivative or collective works based on the bottom of the rail + a safety margin // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*2; v_margin = hole_dist_top*2 + thickness; width_mm = hp_mm(h); difference() { 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); 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 -8.97218 4.79464 facet normal 0.247465 -0.963794 0.0993104 facet normal -3.987226e-16 -7.910530e-01 6.117476e-01 facet normal 0.714676 0.586516 0.3811 facet normal -0.780252 -0.0331891 0.624584 facet normal 0.0979739 -0.995118 -0.0119198 facet normal 0.956902 -0.290412 -3.99024e-06 facet normal -0.989316 -0.0976054 0.108289 facet normal 0.491815 -0.403619 0.771499 vertex -4.7566 -7.11876 5.56266 facet normal 2.839768e-004 4.969595e-004 -9.999998e-001 facet normal -4.395883e-001 7.536206e-001 4.886902e-001 facet normal 0.0883209 -0.0731843 0.9934 vertex -5.10296 -6.16842 19.944 facet normal -0.471388 -0.881926 6.69388e-06 facet normal 0.678285 0.205763 0.705402 facet normal -0.796853 -0.241727 0.553709 facet normal 7.683898e-01 -1.852630e-03 -6.399795e-01 vertex -1.089715e+02 9.725134e+01 1.226808e+01 vertex -1.090719e+02 9.665134e+01 1.214754e+01 facet normal 0.314572 -0.147387 0.937721 vertex -7.0162 3.85359 19.9497 facet normal -7.808552e-001 -3.477091e-003 6.247023e-001 vertex -4.055689e+000 -8.726244e-001 2.484855e+001 facet normal 0.989359 0.0973251 0.108147 facet normal 0.22241 0.884711 0.409659 facet normal -0.993001 -0.0642719 0.0990887 vertex -7.93692 1.00267 20 facet normal -0.0942412 0.028589 0.995139 vertex 6.2529 -4.17805 6.0001 facet normal 4.937034e-001 -8.439927e-001 2.096029e-001 vertex -3.428293e+000 2.612886e+000 2.470218e+001 facet normal -0.951058 -0.309012 9.00916e-06 facet normal -0.0846398 -0.279017 0.956549 vertex 4.48624 6.71414 5.88782 facet normal 0.0817037 -0.0823248 0.993251 vertex 5.59201 4.18951 7.89187 facet normal -3.677414e-02 4.257209e-03 9.993145e-01 vertex -1.070916e+02 9.695134e+01 1.153720e+01 facet normal -0.481758 -0.876304 0 facet normal -0.956943 -0.288321 0.0336375 facet normal 0.331544 0.422843 0.843375 facet normal -6.586109e-001 -4.311545e-003 7.524713e-001 vertex -4.097424e+000 1.590920e+000 2.488700e+001 facet normal 4.915357e-001 8.601878e-001 1.359026e-001 vertex -6.905809e-001 -5.424677e+000 2.470218e+001 facet normal -0.796857 -0.241727.

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