Remixed from http://www.thingiverse.com/thing:44068 I converted Part 1 into two pieces that can be friction welded together. This allows the clips to be printed flat on the bed, thus making them much much stronger. Print, then friction weld the two components together. This can be done with a piece of filament and dremel/high speed drill. For help with welding see: http://makezine.com/projects/make-34/skill-builder-finishing-and-post-processing-your-3d-printed-objects/