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Where OpenSCAD can find it (your current project's * working directory/folder or your OpenSCAD script and call either... * knurled_cyl( Knurled cylinder height, * Knurl polyhedron width, * Knurl polyhedron width, * Knurl polyhedron depth, * Cylinder ends smoothed height, * Knurled surface smoothing amount ); } /* dirty absolute URL */ /* replace '//' or '/./' or '/foo/../' with '/' */ $re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#'); for($n=1; $n>0; $abs=preg_replace($re.

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