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Keep it round. [mm] shafthole_cutoff_arc_height = 0.35; /* [Stem (optional)] */ // // directional indicators // // Whether to create a D-shaped shafthole if desired. Scale([engraved_indicator_scale * 0.3, engraved_indicator_scale * 0.3]) 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 -6.25374 7.81454 facet normal 0.097362 0.0300634 -0.994795 vertex 9.68118 2.4857 0.0479967 facet normal -0.643689 -0.528266 0.553714 facet normal -1.379493e-13 -1.000000e+00 -3.723660e-13 facet normal -4.084288e-01 -9.127902e-01 -0.000000e+00 facet normal -2.159059e-001 3.687350e-001 9.041123e-001 facet normal -8.314602e-01 -5.555843e-01 -0.000000e+00 facet normal -5.967591e-01 8.024204e-01 1.230855e-04 vertex -1.018354e+02 1.045514e+02 4.255000e+01 facet normal -0.0376662 0.382433 0.923215 vertex -9.12468 0.183929 3.76384 facet normal 0.76848 -0.630656 0.108218 facet normal -0.491816 0.403622 0.771496 facet normal 1.800798e-001 -3.061225e-001 9.348049e-001 facet normal 0.247486 -0.963775 0.0994347 facet normal 9.127902e-01 -4.084288e-01 0.000000e+00 vertex -9.778629e+01 1.060828e+02 1.855000e+01 facet normal 2.588493e-001 1.152847e-003 9.659171e-001 vertex -5.215618e+000 1.988232e+000 2.494118e+001 facet normal 0.547914 -0.449667 0.7054 facet normal -2.126167e-001 -3.706483e-001 9.041095e-001 facet normal 0.000517913 -0.115713 -0.993283 facet normal 0.290285 -0.95694 8.0192e-06 facet normal -9.952711e-01 9.713563e-02 2.477278e-04 vertex -9.020897e+01 9.940098e+01 4.255000e+01 vertex -1.044931e+02 9.780567e+01 4.255000e+01 facet normal 0.000000e+00 7.910530e-01 6.117476e-01 facet normal -0.630655 0.76848 0.108222 facet normal 0.0729941 -0.976261 0.203926 vertex 1.03118 -7.21514 7.67586 facet normal -0.114152 -0.990969 0.0703601 facet normal -8.613040e-01 -5.080899e-01 -3.157564e-04 vertex -1.036795e+02 9.542199e+01 3.455000e+01 vertex -1.001367e+02 9.225611e+01 3.455000e+01 vertex -1.036795e+02 9.542199e+01 2.655000e+01 facet normal 0.0974075 0.989345 0.108204 facet normal 7.942002e-02 4.702208e-03 9.968302e-01 facet normal -7.384231e-01 -2.904143e-03 -6.743314e-01 facet normal -9.052842e-01 2.348598e-04 -4.248064e-01 facet normal -0.247464 0.963799 0.099265 facet normal 0.392534 0.734389 0.553705 facet normal -0.097471 0.989338 0.108209 vertex 3.23494 4.84143 21.335 facet normal 0.772981 -0.634316 -0.0119415 facet normal -0.191481 -0.962628 -0.191527 facet normal -0.222395 -0.884723 0.409641 facet normal 0.555573 -0.831468 7.7622e-07 vertex -1.31069 3.16429 8.44867 facet normal 0.679084 -0.550873 0.485163 facet normal 1.519548e-001 9.883875e-001 -0.000000e+000 vertex 6.382745e+000 3.056598e+000 2.496000e+001 vertex 2.602059e+000 5.001575e+000 1.747200e+001 facet normal -0.0208841 -0.0914064 -0.995595 facet normal -2.331188e-01 -1.106869e-03 -9.724476e-01 vertex -1.058330e+02 9.725134e+01 1.284087e+01 facet normal 0.0820366 -0.0818217 -0.993265 vertex 3.87686 3.87686 21.8439 facet normal -5.741950e-01 -8.187185e-01 3.340390e-04 vertex -1.016764e+02 9.312963e+01 4.255000e+01 facet normal -0.11511 -7.7227e-05 0.993353 vertex.

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