About this 3D model

These are additional guides for the filament, the conduits or both. You may also want to download the conduit guide part 10138 from here : http://www.thingiverse.com/thing:109959 More to read about this thing here : http://www.reppersdelight.spacymen.com/index.php/post/2011/01/26/Making-some-guides-for-the-conduits