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Because a higher-than-necessary value // hurts preview mode performance. // Thanks to http://www.iheartrobotics.com/ for the overall arrow size. Engraved_indicator_scale = 1.01; // Height of the arrow. Scale([engraved_indicator_scale * 0.3, engraved_indicator_scale * 0.3, engraved_indicator_scale * 0.3] // Arrowhead triangle as a cylinder with 3 faces. Cylinder(r = setscrew_hole_radius, h.

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