Not sure, will have to look it up later; it's on the makerware default standard settings.
Also on 30% infill.

Seems one of the wing nuts to level the bed has lost it's tread or something, wont change the level when turned.
Already ordered some new wing nuts from ebay.
Or might print some of these fancy looking knobs instead: http://www.thingiverse.com/thing:312187