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Or if you want 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); 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 -7.34398 6.86102 facet normal -8.401793e-02 9.964642e-01 0.000000e+00 facet normal 0.643692 0.528262 0.553714 facet normal -0.106447 -0.024393 0.994019 vertex 0.0587368 7.36167 6.86308 facet normal 0.768263 -0.629654 0.115357 vertex -4.59658 4.30043 7.71246 facet normal 3.318485e-001 -5.689129e-001 7.524723e-001 facet normal 6.013035e-01 7.990206e-01 3.429106e-04 vertex -9.322219e+01 1.047675e+02 1.055000e+01 vertex -1.033348e+02 9.486071e+01 2.550000e+00 facet normal -0.125325 0.992116 0 vertex 3.13809 -1.3499 17.8562 vertex 3.13809 1.3499 17.6363 vertex -3.13809 -1.3499 6.59 facet normal -0.0357185 0.453753 0.890411 vertex 4.66156 -1.65141 19.1916 facet normal 0.0568312 0.0727061.

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