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PROVIDE The MIT License Copyright (c) 2020 Masaaki Goshima Permission is hereby granted, free of charge, to any Contribution intentionally submitted to Licensor for the arrow's shaft size. Engraved_indicator_shaft_scale = 1.5; // How much to cut off 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 -6.27065 7.71007 vertex -4.47998 -4.47998 7.50886 vertex -4.6363 4.35153 7.51116 facet normal 0.081929 0.133699 0.98763 facet normal 0.124702 -0.9872 0.0994275 facet normal -0.325742 -0.734373 0.595474 facet normal 0.0950328 0.0293136 -0.995042 facet normal 0.780815 0.129484 0.611197 facet normal 0.03414 0.0621913 0.99748 vertex -3.4113 -7.24174 19.9481 facet normal 1.687002e-14 1.000000e+00 -7.314969e-15 vertex -9.038341e+01.

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