What manipulations are you talking about? I am using Bambu Tough PLA with their profile on their printer. I am slicing a retraction test tower in Orcaslicer. The printer strings bad at 220c. Do you think that is normal for the A1? Is the Orcaslicer retraction calibration “old style”? I’m also not going to agree that 220c is max for PLA when Bambu sets their profiles up to 240c on some PLA.
I get these weird strings in normal prints as well which caused me to look into it in the first place.
Edit: Maybe you could be more specific about what you think is not working or what the OP or I have fundamentally wrong.
Edit2: @bernardgaron I am seeing the bad stringing at seams as well. If you watch it during the print you can literally see it create the string on zhop/retraction/travel.