got a lulzbot mini for the family for christmas this year. The thing was solid for the first couple of prints but has developed a problem where it seems to randomly shift to the left during printing subsequent layers. Ive run a couple of rocktopus test prints that show this behavior and started one just now to show it at the beginning. Ive read about endstop triggering, and the person I talked to at Aleph suggested I check the tension on the X axis motor. I can see no way to verify these things without disassembling the printer, and as it is about a month old and still under warrenty I am hesitant to do so.
Is this a known problem? Should I be returning the thing?