YAPML yet another poor man's library that makes things finding it hard to render and taking its time to compile.
In this case the self-replicating polyhedron is intended to give a mechanical touch to your freshly (or not) designed cylindrical surfaces. Hmmmm... you can also thing that those things all-around the cylinder are diamonds and use it for jewelry.
The examples scad provided uses OpenSCAD MakerBot Font Module by grokbeer licensed under BY-SA-NC license (link in the instructions section)
Photos... http://aubenc.imgur.com/knurled_finish_surface
UPDATE:
(Just in case you don't read the comments bellow)
Video by sirmakesalot (thank you very much!!)... http://www.youtube.com/watch?v=uz8h--NsX7E
Things using this library :-)
Bowden Clamp for Ultimaker by owen http://www.thingiverse.com/thing:11864
Spindle for 5lb spool by mikeq http://www.thingiverse.com/thing:12871
Knurled "topper" for stepper motors by Pazu http://www.thingiverse.com/thing:13978
Ultimaker Hobbed Bolt Release by bkubicek http://www.thingiverse.com/thing:14505
Hobbed bolt holder by coffeeMaker http://www.thingiverse.com/thing:16136
Shane's Coral Frag Plugs by sgraber http://www.thingiverse.com/thing:16982
Bowden Clamp for Ultimaker (Feeder End) by pit3k http://www.thingiverse.com/thing:17027
aubenc
