Quoted from Mr_Tantrum:
Prints are same speeds. Just d/l Bambu Studio, import your STL files, then generate GL code with desired settings to do comparison against Prusa. In my experience Bambu is 2x to 4x faster depending on model.
Not to mention no more manual filament changes for multi-color prints, so they can be done unattended.
Here is one example using one of my more complex mods with the same exact settings (layer height, walls, top/bottom layers, infill, filament, etc.) On the Prusa MK3S+ the print time is 14h39m. On my Bambu Carbon X1 the print time is 4h40m (over 3x faster).
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DAMN! If I can get these 45 hour prints down to 24 - that saves me a lot of headache. I've not printed a lot of these huge models before, so getting the print supports right is a challenge, and it's really frustrating when they fail. I've done some test prints at 25% size but they don't always tell the whole story.