Great, thanks. It probably happened because we are in Thailand and it came here by way of Singapore, so thats a lot of travel.
when I tighten the pulleys should the right side, with the nylon spacer be snug against the bearing or should there be some play there?
just to be clear, these are two separate things, loose y axis belt, then the x axis rod loose.
ill give it a try and see what happens.
I think a pulley must be loose.
They should hold it in place, can you push it back and tighten the pulleys?
If the slack is bad it could affect your print, but there is some room for play.
Usually this happens when you pick up the Ultimaker and (accidentally) grab the belt instead of the frame. This can also be fixed by loosening the pulley's first, allow the tension to equally divide over top and bottom (maybe you need to help it a little bit), and then tighten the pulleys again.
Let me know how it goes
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