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Hole's center over the base shape. See knob_base(). Rotate([0, 0, i * (360/RingMarkings)] cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); // Pointer1: Offset hemispherical divot // Hole for shaft cutout // set the quantity, quality, size, and adjust the placement sphere_starting_rotation = 90; // for spherical indentations, set quantity, quality, size, and adjust the layout of some that get squished or have excessive padding. This requires Futura font files. The Filmoscope Quentin font.

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