I recently bought X2D, but I’m far from new in 3DP. I printed with X1Cs, P1S, H2D, as well as Prusa MKS3, Ender3 and in the ancient times DaVinci and UP 3DPlus :laughing: I had underextrusion issues on both extruders from day 1 with X2D. Sometimes to the point that it causes spaghetti, because the …

[image] Cocon16: Are other X2Ds capable of printing well with Bambu Lab’s own filaments? I cant answer this directly, dont use their filament, but my X2D does fine with TPU Main/PETG Aux combos. Yes, I calibrate, not every spool, but every SKU.

So you don’t see the kind of underextrusions I’m getting? And what kind of calibration? Jest Flow Dynamics ¶ or full Flow rate calibration which is 2 x 44 m?

I run, in order: Temp tower Flow Rate Pressure Advance and optionally retraction length I do the tower from the calibration menus, and the rest with an in-house model I do not use fast speeds on any calibration, nor any print, so your mileage may vary.

There are several other reports about unusable top surfaces here in the forum. On my X2D , I get nice surfaces without any calibration. For some filaments, I have fine-tuned flow to the last 1% but I wouldn’t call it necessary. I’m pretty sure that something is broken in those printers that behave …

I have more or less exactly the same problems thatn you. Did you send any email or request to BambuLab for Warranty coverage ? I’m really thinking about geting back a P1S or P2S at this point. i spent hours and hours to play with the settings and i cannot fix them once and for all, it’s really frust…

[image] nicotheredfish: for Warranty coverage ? I’m really thinking about geting back a P1S or P2S at this point. i spent hours and hours to play with the settings and i cannot fix them once and for all, it’s really frustrating I did. They wanted to deduce if that is caused by the AMS or the …

Let us know how it goes as mine also behave similar.

Just recently I was able to somehow fix the bottom layer, will let you know how it goes to the top soon. [image] X2D print quality issues Bambu Lab X2D In the last days started to print actively and yesterday tried one prototype. It got horrible under extrusio…

Underextrusion on the top layer. Bambu Lab X2D. Warranty?

Bambu Lab X Series Bambu Lab X2D

JamboBambu October 7, 2026, 8:33am 9

Just recently I was able to somehow fix the bottom layer, will let you know how it goes to the top soon.

Do you see any progress on your side with the top layer issues?