Hey, I calibrated some material for their k values however I’m not sure when this setting is active? I thought by selecting the material in the slicer it would automatically use the values for the selected material but it doesn’t seem to do so…
Do i have to select this manually on the machine before starting a print with different materials? can you do this in the slicer? If i leave the printer on ‘default’ does that disable it?
I’m confused. Any help would be great.
You don’t have to calibrate it manually before you use the filament, you just select “flow calabration” in its prepare time before print when use if a new filament.
Thanks,
OTpandy1
Sorry for the late reply, hope this helps.
Does that then set the filament at the latest that was calibrated until you switch filaments again?
It can do auto flow calibration before each print.
Yes but I need the pressure advance setting to be dialled in. I notice that prints will be weak if the pressure advance isn’t set correct for the corresponding filament.
Is their a way to simply activate it manually when ever you change material? I don’t run the auto calibrate at the start I have a quick start gcode so i prefer to manually calibrate my filaments…
Honestly I’m not sure as I have a P1S which does not have flow calibration.
I have just tried creating a flow dynamics calibration for some tpu however it doesn’t seem to save it? i cant find it on the printer nor the slicer?
This all made to be far more complicated than it needs to be…
Well maybe take away the quick start, I don’t think they designed it with modified gcode in mind.
NEVER 
i cant stand the bambu start up procedure it sucks!
Anyways i have an update, I have tested different configs and what i found is that by selecting the default profile in the external spool on the printer/device settings in BL it ignores the k value calibrated for the pressure advance so by activating in the printer/device settings is a must.
Also found my saved profile for the tpu ironically it saves under tpu although i never told it to… little over done by Bambulab but glad i got this worked out now.
I can finally print with confidence! 
