Intermittent stringing on A1

Hello, I take the liberty of writing an already open post since I just signed up and I still don’t understand how to create new posts. I’m writing this message because lately I’ve also had problems with my Bambulab A1 purchased less than two months ago with the AMS paired.

My problem is that sometimes the printer makes immense disasters. For example, I was printing this Gridfinity container that I cut in half since it didn’t fit in the printing area.

He printed the first half perfectly (see photo)

While instead the other half made a disaster (see photo)

Consider that the temperature and humidity parameters of where it printed are the same as the first half (see photo)

Finally, consider that just yesterday I did maintenance on the X - Y - Z guides of the printer by cleaning and lubricating them with wd40 multi use.

I hope more experienced users can help me understand what generated this problem so that I can make sure I don’t happen again in the future.

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