Pressure Advance calibration storage limit

Hi, at the moment i’m busy with pressure advance calibration for my filaments with my new H2C.

At some point i got an error message from Bambu Studio:

I have about 40 filaments, that i have calibrated with my X1C on different nozzle sizes and now i was about to calibrate them on my H2C with different left/right nozzle sizes.

Can i do anything about this arbitrary restriction? I don’t need online storage, offline is sufficient.

I read something about the possibility to add the pressure advance calibration in your filament start gcode like “M900 K0.023 L1000 M10”. But there is some confusion for me with the L1000 M10 part. What do these commands do? I also read something about linear advance vs. pressure advance, maybe that’s what the L100 M10 part is about, but i could not get enlightened.

My goal would be to either somehow bypass the storage restriction (preferred) or to add pressure advance to my filament start gcode in a way that is similar to the way that “manual calibration” in Bambu Studio works, so i can reuse my already calibrated values from my library 1:1.

Thanks for your time.

Hi Lars,

The calibrations are stored on the printer, so that is likely the storage that the message is referring to. I suggest contacting BL support, if you haven’t yet. First I’ve heard of a storage limit.

As for the g-code way, M900 is not emitted by Studio for BL printers because apparently it’s not the same as using the stored calibration data. We had a discussion about that recently, starting here: Bambu Studio presets management -- utilizing inheritance features - #5 by MaxThreeD

Cheers,
-Max