Warping PLA - I tried everything

Bambu Lab X1 Series Troubleshooting
1

Hello guys,

I’ve seen a lot of topic here on warping PLA, I tried everything I’ve read here and there, nothing seems to work. If you have any ideas I’m taking it gratefully.

I’ve printed with my X1C for around 1200 hours, without any problems, from PLA to ASA/ABS.

Here is what I tried so far :

  • Changing models, it warp with any models so far.
  • Cutting off the aux fan, tried around 20 to 40% either, same results.
  • Bought new plates, It warp on cool plates like Biqu and on Bambu PEI Gold plate/Smooth PEI.
  • Removed top and opened the door during printing. I tried to change temp on the bed in the range of every plates too.
  • Tried another brands, I’m printing most of all with Rosa3D PLA, but I’ve got warping even with Polyterra & Bambu PLA.
  • Calibrated my filaments, with Dynamic flow & all, even temp tower.
  • I calibrate the bad at every prints.
  • I’m using Bambu studio and I use Generic PLA profile, never had any problems (that I tuned with the results of the calibrations).
  • My printer and Bambu studio are up to date.
  • It has nothing to do with the Jetpack Biqu installed on the head, I work with it for around 400 hours now and I didn’t have a single problem.
  • I looked at my first layers they are perfect at every print.

Some pics to explain :

IMG_1369
IMG_13691920×1440 135 KB

IMG_1370
IMG_13701920×1440 129 KB

IMG_1371
IMG_13713024×976 283 KB

IMG_1372
IMG_13723024×1326 473 KB

IMG_1373
IMG_13731920×911 98.5 KB

IMG_1375
IMG_13751920×1440 125 KB

Hopefully someone has the answer to my problem, It’s sad to not get any print working correctly on such a good printer.

Have a good day, and thanks for your time and help :slight_smile:

2

Two things come to mind:

  • I did not see drying filament in the list of attempted remedies. New filament is frequently moist as the bags can not stop moisture. They only slow the diffusion into the bag. After a long sea voyage… Warping/curling is usually the first visible indication of filament moisture.
  1. Give your filament(s) a run in the drier or use the printer to dry.
  • Warping and curling occur when a fresh layer cools and hence shrinks on top of an already cooler layer. The fresh layer also injects additional heat into the older layer, causing renewed shrinking. So there are a number of things you can do to minimize warping:
  1. Keep the build chamber as warm as you can while avoiding heat creep. For PLA, I go for 35-39°C. In case of ironing being used or print having many retracts, do not exceed 35°C.
  2. Inject less heat per layer: Use a lower layer height (at least for the lowest inch or so).
  3. Slow heat injection by slowing down the print (at least for the lowest inch or so).
1 Like
3

I agree with the above, need to keep the chamber warmer, but not too warm risking heat creep. You might be able to get away with turning cooling down on larger objects too.