Bambu calibration and AMS Factor K error?

Bambu Lab X1 Series Troubleshooting
1

I don’t understand something, I would appreciate some insight.

I am using OrcaSlicer, and it concerns Bambu PETG HF filament. I have used Orca to calibrate this filament. The results:- Flow Rate=0.99, Pressure advance=0.028, Max Volumetric speed 25 mm³/sec. The resulting file name is Bambu PETG-HF White Textured@BBL X1C

Ok, now I go to the Device tab. This filament is in position A4. I see a White PETG and an eye symbol. I open A4 and see Filament PETG HF. I find out that I am not allowed to select a different Filament. (I presume that the AMS has read the rfid tag and it’s locked in). I click on PA Profile, the dropdown shows Bambu PETG-HF White Textured. I see that Factor K changes to 0.010 and is greyed out.

My question.

  1. Where does the Factor K come from? (it’s not in the calibrated filament results).
  2. Does the filament get to use my PA calibration Profile? I mean is the Factor K 0.010 ignored or what?

Thanks, its bothering me.

2

Softfever has said that the PA advance setting (K factor) from the OrcaSlicer filament profile is the value used in the g-code sent to the printer, which overrides the setting on the Device page.

If you use both Studio and OrcaSlicer and they are in sync via the Bambu cloud, Studio will also use the OrcaSlicer PA settings for the g-code it produces.

2 Likes
3

Thanks for confirming that the OrcaSlicer calibration values are the ones used in the g-code. I wanted to stay with Bambu studio. But just wasn’t able to get the X1C to print accurately enough. Fortunately OrcaSlicer has enabled me to achieve pretty decent dimensional results. Again, thanks.