Printing position shifts midway, causing a fail

I tried this donut shape two times, and both times this happens.
The slicing shows a proper donut through and through, but while printing, in the middle it starts offsetting the donut on the xy plane midway. What could be causing this?

This is the sliced model. The few disabled models printed just fine in a previous run, so I sliced the setup with them disabled to try the failed donut again. Then the donut failed again around a similar z-height.
hart-bagel-cut-failed.3mf (621.4 KB)

HI @AElferink,

Welcome to the forum.

Can you try to explain it differently? I didnt understand. Does it make the print move, or is it the toolhead that moves away from the print? If you print slides, you need to properly clean the bed plate.

I am still assessing the preset, but you made several changes to the original one, so it takes time.
The one that caught my attention was avoiding crossing the wall. Maybe it isn’t relevant.

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Hi @JayZay,

Thanks for helping me look into it :slight_smile:
The print is stuck to the printbed, it does not slide. The toolhead just starts printing in a different location.

As I mentioned, previous models printed just fine with the same settings.

P1S or P1P?? What plastic you using?

The item needs support, that’s why it’s printing like that.

Can’t print in mid air. You painted manual supports but didn’t support the cut.

Should look like this when sliced.

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