We have not conquered the art of keeping the first layers from curling up. I figured the extruder must have caught on one of the edges and lost its bearings (if you know what I mean.)
Some arms were warped but straighten right out with the use of a wet paper towel heated in a microwave.
Hairy Situation
Re: Hairy Situation
yeah that's pretty hairy. 
My rostock build log http://forum.seemecnc.com/viewtopic.php?f=42&t=1228
Re: Hairy Situation
You should post that on thingiverse: http://www.thingiverse.com/thing:44267