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Preg_replace("@@", '', $article['content']); // only keep everything starting at the top. Rotate([0, 0, i * (360/RingMarkings)] cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); if (RingMarkings>0 for (i=[0 : RingMarkings-1] rotate([0, 0, 90 + sphere_indents_offset_angle + ((360 / cone_indents_count) * z)] sphere(r = sphere_indents_radius, $fn = shafthole_faces); // Adapt to a D-shaped shafthole cross-section. 0 to keep it round.

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