u/Shot-Yak6038

Image 1 — Layer shift and stringing on PETG pring
Image 2 — Layer shift and stringing on PETG pring
Image 3 — Layer shift and stringing on PETG pring
Image 4 — Layer shift and stringing on PETG pring
▲ 3 r/prusa

Layer shift and stringing on PETG pring

I'm trying to print a honeycomb pattern with PETG on the Core One. Everything goes OK for about 10 layers after which there is a large diagonal layer shift of about 10mm. As well as the layer shift, the print goes really chaotic, strange and stringy. In other words, it's not just a layer shift - something else seems to be going on.

It's happened twice in a row now, around the same time in the print. I have the latest firmware 6.5.7 installed I don't have "avoid crossing perimeters" enabled. 

I see a lot of suggestions to check the tension of the X/Y belts, but I don't understand how it could be a tension issue when the first 10 layers are fine.

What could be going on?

u/Shot-Yak6038 — 4 days ago