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Bottom radius of the arrow. Scale([engraved_indicator_scale * 0.3, 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); 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 8.88682 5.07603 facet normal -1.800811e-001 3.061249e-001 9.348039e-001 facet normal 0.652531 0.754488 -0.0703586 facet normal -0.0217758 -0.172853 0.984707 facet normal -0.0973393 -0.995186 0.0113559 vertex 6.91995 1.06598 10.3435 vertex 4.80177 -3.28327 21.335 vertex -6.91995 -1.06598 10.3435 facet normal -0.439084 -0.687856 0.577979 facet normal 1.660544e-01 -9.861165e-01 3.464485e-04 vertex -9.877515e+01 9.184439e+01 4.255000e+01 facet normal -0.976223 -0.0962896 0.194209 vertex 10.1904 0 2.19603 vertex -1.98804 -9.99456 0 vertex 10.1521 -0.388301 0 facet normal -0.0819177 0.0822333 -0.993241 vertex 3.82407 -2.97699 21.7653 vertex -3.62229 3.03882 21.7538 facet normal -4.496505e-001 -7.868879e-001 4.226369e-001 facet normal 0.447809 -0.382474 0.808196 facet normal -0.36633 -0.925211 0.0989244 facet normal -0.840156 0.533176 0.0993072 facet normal 0.32036 0.220665 0.921236 facet.

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