Using a Gearman RepRap with Slic3r, printing from an SD card, with an uniterupted power supply (UPS), and both PLA and ABS filaments, short power outages often result in x/y-axis offsets (see image). During an outage the power is not as clear from a UPS as from a power conditioner. If both x and y axes offset the results look like [Why did my print fall off its raft?](https://3dprinting.stackexchange.com/questions/10432/why-did-my-print-fall-off-its-raft?noredirect=1#comment17398_10432). Are you experiencing these same issues? Have you solved the issue. 

[![Shows x-axis offset (ABS)](https://i.stack.imgur.com/cSUVd.jpg)](https://i.stack.imgur.com/cSUVd.jpg)

The image above shows an x-axis shift that occurred evenly across eight parts distributed across the bed. The filament was ABS. The parts still adhered to the bed. Note: the G-code file normally prints well. Thus, the file is not corrupt.