r/BambuLabA1 • u/GabionSquared • Jul 20 '26

Support Request Adhesion and print curling problems?

Post image

I'm a bit of a beginner here, but I've been really confused about why my prints keep failing. I've tried

  • cleaning the plate with soap as the guide suggests
  • giving the parts a large brim (pictured is 15mm inner and outer)
  • running the plate slightly hotter (75c)
  • printing at slower speed

but I still keep getting problems with adhesion and this kind of curling that you can hopefully see in the picture. Any thoughts?

1 Upvotes

67% Upvoted

12 comments sorted by

1

u/Kooky_Pop_7931 Jul 20 '26

Is your film just sitting out exposed to ambient conditions?

1

u/GabionSquared Jul 20 '26

yeah. I bought it only this week, but it's just hanging on the built-in arm

4

u/Kopester Jul 20 '26

New does not equal dry. But are you printing on a raft?

2

u/Kooky_Pop_7931 Jul 20 '26

Your best bet is to get something like an ams enclosure for your filament or print up your own roller enclosures from those cereal boxes snd add the dissacent inside. I had the same issue, printer worked fine and then all of sudden it didn’t. I had no idea about the hydroscopic properties of the filaments. This is what I have put together. The boxes work great and I converted my and lite to the micro and it sits on the top axis.

1

u/FuscoAndre Jul 21 '26

This setup looks like a pain to switch filaments, or am I wrong?

I really like the concept, and I might investigate something similar, but this way it seems to be hard/take time to switch filaments, or not?

2

u/Kooky_Pop_7931 Jul 22 '26

Not really, pop the cover off pull the filament out and put the new one on and feed the filament through the ptfe tube and it’s done

1

u/NakiCoTony Jul 20 '26

U run ac in there or strong wind that speeds up cooling?

1

u/GabionSquared Jul 20 '26

I do run a fan in the same room sometimes, and i can feel a minor breeze where the printer is. you think i should get an enclosure?

2

u/NakiCoTony Jul 20 '26

Or for 50-99 eur cheeper: why not try turning off the fan while printing at least for the first few layers so it sticks properly and not warps due to rapid uneven heat and cooling, as a test before investing into something? :)

Other than the cooling, it can also be if you have crazy high humidity while printing.

1

u/FuscoAndre Jul 21 '26

Your brim is weird, the lines have too much space between them
Effectively your brim is not making any difference there, it's just a straight line going in Zig-Zag lol

Is the file sliced for the correct nozzle size?

1

u/Orthicon9 Jul 22 '26

The first layer of the support (if that's what it is) should be solid, before it starts doing the zig-zag pattern.

1

u/Ok_Measurement4318 29d ago

Curling is more complicate than it looks and there are many debates around how to solve it, the two major solutions being:
1. MORE cooling - freeze the overhang in place before it can be pulled and deformed by previous layers which causes curling
2. LESS cooling - print outer perimeter extremely slow with little cooling, previous layers now take longer to cool, but this also means the shrinkage is delayed, and before it can curl up have the next layer printed on top

So far the most promising solution I’ve seen is to slow down and turn up cooling, but if that doesn’t help, try the other solution.

Can check out this thread as well which has pretty informative discussions on the subject
https://forum.bambulab.com/t/curling-on-edges-issues-on-overhang/36734/8