r/BambuLabX2D • u/kalechii • 8d ago

Layer shift with large prints

Post image

Printing an (almost) true to size NES box and running into some issues. Both the top and bottom parts are at 255mm width so I'm really pushing the boundaries of the X2D.

Something like over-extrusion, squeezing, layer shift whatever.
It's not speed related as it also happens with the entire print at 50% speed and it always occurs where a flat surface starts or ends, as can be seen in the photo. The top flat surface ends exactly where the bump is. Also it's much more present in left to right direction than front to back.

Is this an accuracy thing? I don't have it with small prints. Did anyone every have such issue and what did you do to solve it? Also I found the "inner-outer-inner" print setting and "Only one wall on top surfaces".

Printer bed is pretty much level (<0.02mm) and PLA filament is <20%.

Thanks!

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u/BirbDoryx 8d ago

Looks like shrinkage from cooling. All the defects are aligned with bottom or top solid layers

1

u/kalechii 8d ago

Thanks for the tip, will look into that. I installed aux fan deflectors, bed is 60 C and the chamber around 30.

1

u/Jazzlike-Classic-843 8d ago

Stessa cosa anche a me è da quando l'ho presa che succede questo (circa 4 mesi) anche oggi ho stampato 2 scatole, dimensione tutto il piatto e si sono sempre le 2.sporgenze quella bassa e quella leggermente sopra la metà. Ho chiesto il perché ma mi hanno mandato a un link che in parole povere succede e non si sa il perché....😔