The first layer magical cure

Slic3r 0.7.2b and magically, everything works...

Good-looking Prusa parts!

Excellent bridges. Very small warp on two corners.

Loose screw

Extruder pulley set screew came loose = aborted print. Darn, this one's not mounted with Loctite. Fixed. Printing again...

Print, print, printing along ;)

Results looking good. Printing Prusa parts for 21st of April...

Strange patterns on first layer

I'm getting really funny patterns in solid fill on the first layer that is going onto the glass. Already played with temperature, up to no avail. Any ideas, anyone?

Printing again

Finally: I'm printing, after readjusting the belts and stepper driver current(!) of the Y an Z axis.