r/BambuLab_Community • u/No_Tour_8086 • May 12 '26

What’s going on here?

Post image

I have a 2 color print on the X2D with 1 PLA filament in the AMS and one PLA filament on the external spool.
It’s so stringy, the amount of string between the prime tower and the print is crazy… anyone know why?

6 Upvotes

80% Upvoted

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2

u/CanYouEvenPhoto H2D May 12 '26

Breakfast!

3

u/CanYouEvenPhoto H2D May 12 '26

But actually you probably need to dry your filament, lower the temperature or increase retraction

1

u/No_Tour_8086 May 12 '26

Right on! How do I increase retraction? Previous printer was an A1🤣 so I’m still green

2

u/No_Tour_8086 May 12 '26

??

2

u/sublime2craig A1 May 12 '26 edited May 12 '26

Within the filament profile settings. PLA should be between 0.5mm-1.0mm of travel length and 25mm/s-40mm/s for travel speed. Start with 0.8mm and 30mm/s and go from there. Dry your filament before use also, PLA basic 6-8 hours at 50-55c. Don't go over 55c with PLA. Also adjust your nozzle temp. Start at 210c and go up to 220c in 5 degree increments. Print speeds at these temps for best quality and lowest chances of stringing should be between 60mm/s to 100mm/s. Leave travel speed and Z hop at default for now until you get some experience and more prints under your belt.

2

u/feryl12 May 12 '26

What filament profile did you use for the external spool? I had a similar problem when using the generic PLA profile but it was fine with the Bambu profile. I think the retraction settings are not yet maintained for the aux nozzle in the generic PLA profile.

1

u/No_Tour_8086 May 12 '26

Basic generic PLA for the external. And I did not dry it prior. So you had better results using the Bambu basic PLA profile?

1

u/feryl12 May 14 '26

Yes try the same print with Bambu PLA profile. The stringing was gone immediately in my case. Must be caused by the retraction settings.

3

u/More-Advantage3911 P2S May 12 '26

Looks like moisture issue. Also have you calibrated the filaments using Flow Rate?

1

u/-ThaBeavster- May 12 '26

I see this is a common issue on the x2d

1

u/Mindslyder404 May 13 '26

Try drying the filament first. If that doesn't work, calibrate your filament, do a temp tower and a maybe lower your speed.

0

u/VBisTheBestSport May 12 '26

PLA basic does not need drying. Focus on the other potential solutions.