Sudden warping issues with any filament and any printplate onX1C

Bambu Lab X1 Series
1

So after like 600 hours of printing with calibrated filament and nothing changed i get really bad warping issues. My bed isn’t really flat, but it has not been an issue so far. Since a few days i cannot get anything to stick to anything anymore. I have calibrated all my filaments using the orca slicer, cleaned my printbeds with soap and warm water, even used a factory new textured PEI sheet, but nothing sticks to my printbed anymore. My benchys are warped, my squares are warped, everything is prone to fly off.

What i checked so far:

  • Cleaned printplates with soap and warm water
  • calibrated printer
  • raised temperature of filament and bed by 10°C and lowered them the same
  • used ASA, PATH-CF, PLA and PETG
  • dryed filament and it printed fine until recently
  • hygrometer inside the ams shows 10% humidity
  • maintenanced printer, cleaned carbon rods, leadscrews, lubed them.
  • checked belt tension
  • lowered printspeeds to generic profile settings (ASA down to 12mm³/s for example)

Nothing seems to work so far. So maybe you guys could share your opinion on that case :slight_smile:

2

Check your cooling fan speeds. Verify that the build plate is staying hot through the entire print, not just the first couple of layers.

Is it a new roll of filament? Just because it’s the same brand, does not mean that it is identical. You may have got a different lot of filament that there is a different chemical composition to it.

3

Well I burn my fingers when touching the plate right after printing but I can get an tool at work to measure that probably. The spools are already used and all down to 33% remainining, they printed well before.

4

If it isn’t sudden change of your ambient temp from hot (before) to cold (now), then I would say it must be some hardware issue.

1 Like
5

I’d say temperatures did go up by like 2°C average, but thats about it. I’ll change the hotend tomorrow to an new .4 one or something.

6

Hi Raynoir,

Well if everything was working good then all hell broke loose my guess is you have a pugged up nozzle or extruder problem or your bed height is off we just need to figure out what has changed.

Are you using the AMS have you side loaded your filament for testing ?

Use one of your past working settings just use some pla for the test and see if you can print a small cube 20x20x10 with no infill or no top layers and two bottom layers and lets see what it reads this way we can get a current nozzle flow spec if you can print it ?

Flow Calibration Test

You can also check your bed height.

Bed Tramming Procedure

Keep us updated :v:

7

Good point, i just printed my nobufil PETG which sticks to the bed without any warping! but i got 0,04g less material out of the print than before - i measured it with 2,18g at 1.0 flow and now it is 2,14g. So i measured 1 meter of filament too and it is still 3,33g/m like it was before. Seems like i got an slight clog in there. Will check when i am back from work and keep you guys update! Thanks for the input so far! :slight_smile:

8

Wouldn’t partial clog manifest as underextrusion and be visible all over the model?

9

Since i cannot finish any print because anything i try to print jumps off the plate after like 20 layers, i cant tell. Stuff is bent like an banana.

10

You can see signs of underextrusion on every layer during print.

11

It sounds like your bed is warping out bad after so long of printing have you straight edged it cold and hot like @ 100c after say 10 min or more ?

12

If you’re talking about if i had it set for 10mins at 100C and left it there, yeah i did. But i can try again or even for longer. But i will first check the clog when i’ll get home. Probably gonna swap my factory new hotend in to see if it makes an instant difference.

13

So i changed to my new hotend assembly and after resetting a really low first layer width things are sticking to the bed again. My calculated calibrations were off by some because they were done with an partial clog, so i adjusted that. Still the bend of my bed seems to be pretty bad, i can clearly see a gap with an straight edge even when heated to 100C after 30mins. Will probably have to contact support for this.