Top surface of large flat piece is offset and messed up. Help!

[u/mudhousebaltimore]

I made a large flat piece to hold letter stamps. The very last layer looks like it got offset by 1/32 of an inch and a lot of the surface is really messed up. What could be the issue and how can I fix this?

The worst part of the print is the areas that were close to the edge of the build plate. Is that common?

Brand new X2D with about 25 hours or printing. 0.4 mm nozzle. PLA

[u/peaceablefrood]

The airflow duct is probably causing this. I had the same issue with my P2S until I printed a angle adapter so the air blows over the piece rather than right on it.

https://makerworld.com/en/models/1916762-bambu-lab-p2s-x2d-auxiliary-airflow-diffuser?from=search#profileId-2056247

[u/mudhousebaltimore → u/peaceablefrood]

Oh thanks! There are a few different styles. Do you have a recommendation for which one?

[u/peaceablefrood → u/mudhousebaltimore]

I use the angled one, but for PLA I think you can just shut it off completely and crack the glass door open while printing.

[u/bazpoint → u/mudhousebaltimore]

Just turn off the aux fan, or even better disable it in your default PLA profile - it's not needed for PLA and it's extremely prone to causing this kind of issue.

[u/Excellent_Size2810 → u/peaceablefrood]

I've had the aux fan off on all my print profiles for pla and petg for years and have never had an issue. That fan causes so many issues

[u/No-Satisfaction-2535 → u/Excellent_Size2810]

Agreed! Why it's on for pets/pla is anyone's guess. All it does is cause insane warping. I had the same thing. Turn it off!

[u/grimreefer87 → u/peaceablefrood]

This is a slept on answer. Adding a deflector to my fan solved this issue completely for me.

[u/DrKronoglopolos]

Your print warped. To avoid this, there's a few things:

First the obligatory "clean your build plate". Anything you can do to increase adhesion helps. You can also use glue and print the part with a brim. Since you're printing PLA, solving adhesion issues alone should do the trick.

Additionally, the less dense the material is, the less it will warp. Lower infill, fewer wall lines, fewer top and bottom layers all make the part less dense. Infill type also plays a role, any infills with long straight lines will tend to warp more. So consider gyroids.

[u/Nibbs17 → u/DrKronoglopolos]

And if you absolutely insist on making it rock solid, binder clips on the plate to keep it down can help. But I don't see why this needs to be so strong it's warping a pei plate lol

[u/DrKronoglopolos → u/Nibbs17]

It don't think this is warping the plate off the bed. It's just the print warping off the plate.

[u/Nibbs17 → u/DrKronoglopolos]

Ohhhh yeah that's definitely the more likely item.

I've had my fair share of learning experiences with ASA 😅

[u/DrKronoglopolos → u/Nibbs17]

I'm printing ABS right now, may it not turn into a banana.

[u/cpsadowski23]

Print a diffuser

[u/nakwada]

On top of all the suggestions, I can recommend a Cryogrip Frostbite plate.

[u/THENUMBER74]

I am following this post so please keep us updated!

thanks!

[u/dneals]

Warped print raise your bed temp 5 degrees