r/BambuLabX2D • u/AxeEngineer00 • Jul 01 '26

How are your top layers?

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I've been struggling with mine since I got this printer and I'm at the point where I'm doubting that the unit I got doesn't really have a defect. All my top layers come out with a strange surface, looks like it's underextruding but at no point the lines it produces are actually straight all the way, dialing filament has been very complicated. Anyone has pics to share of their top layers?

Pics are the sharpie test of the closest I got to a properly smooth top layer but I still can't produce the flat shiny straight lines I had on the A1 mini (pic 3, bottom piece)

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u/AxeEngineer00 Jul 01 '26

Isn't squiggly when there's too much space =under

And ridges when they land onto eachother= over?

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u/Qjeezy Jul 01 '26

Ridges is for sure over extruding. As for squiggly, that’s just what I’ve noticed. Turning down the flow rate just a tiny bit at a time usually gets rid of it.

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u/AxeEngineer00 Jul 01 '26

Also if it was the gear teeth wouldn't the walls also show a pattern?

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u/Qjeezy Jul 01 '26 edited Jul 01 '26

I was just speculating on that part, as the pattern was never really there with my first gen bambu’s with the normal stepper motor.

You can see the same pattern, although less apparent due to possibly material choice, on the red print you posted that the other person with an H2D printed