I have 2 Replicator 2s and for some reason both are creating these gaps. The arrows in this picture show gaps/shifts in the top view. The prints are supposed to go along those fills. In other words the outlines of the parts are way off. I also printed some parts with circles and the makerbot will groan when it prints the circle and it will not be a true circle. Never had this before. The machine only has 100 hours on it. Thanks!