I am attempting to get Auto Refill working on my P1S with the Mk4 3D Chameleon.
Even though I have the same filament setup in the project file (Bambu Studio) and the filaments loaded in T0 & T1 on the 3D Chameleon, I don't get the option when sending the print to the printer to enable auto refill.
I also know the 3D Chameleon has nothing to do with this option showing up, just hoping someone here may have encountered this issue.
I am sure this is a me problem, or a possible limitation of the P1S without an AMS configured.
Without open firmware, you're not going to be able to trigger it. It needs to execute our specific code when it detects the filament runout... But since you can't run custom macros, it's unlikely you'll be able to do it without an external processor that can pause the print, and execute motion commands. I don't think there is any way around it.
Bill