XY Calibration Problem

[SunsetFlavor 0]

So, I've been having a problem with my XY calibration on my Ultimaker 3. It keeps printing out the second material shifted to the left. It's been making calibration next to impossible for x. Any ideas as to what might be causing this?

 

 

 

[Labern 775]

Hi there.

You must have a loose pulley which is causing shited layers. Here is a guide to correct it. 

http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide#shifted

 

Also check both short belts while your at it. 

https://support.ultimaker.com/hc/en-us/articles/360011598659-Check-the-tension-of-the-short-belts