skewed print on UMO+ is driving me insane

[maz101o 0]

hey everyone i got the UMO+ and got like 4 good prints out of it everything was fine i recently printed something on it and it was skewed i did some trials like printing a cube thing went crazy i had the Ultimaker for only a month now am

new to the technology i did big search online for this issue and found some articles about people having the same issue but not with the ultimaker and i cant seem to find anything helpful i tried some stuff to fix it myself but nothing worked please help if you can i have been trying for a week now thank you .

[tommyph1208 55]

This is almost always an issue with a loose pulley that slips on its axis while printing.

Grab a hex key and tighten all the llittle grub screws on your pulleys (don't strip them!)

If you want to make sure your problem is fixed you can mark where the grub screw positions are on the axis with a magic marker, then check to see if the marks are still aligned with the screws after a print.