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Cylinder cylinder(r1=knob_radius_bottom,r2=knob_radius_top,h=knob_height, $fn=knob_smoothness); smoothing(); } external_direction_indicator(); } } /* replace '//' or '/./' or '/foo/../' with '/' */ for($n=1; $n>0; $abs=preg_replace($re, '/', $abs, -1, $n)) { } module knurled_finish(ord, ird, lf, sh, fn, rn [ ord*cos(lf2), ord*sin(lf2), h0], [ ird*cos(lf1), ird*sin(lf1), h2], [ ord*cos(lf2.

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