[Liftyee]

I'm curious - which firmware version are you on? Just yesterday I got confused when I accidentally entered the "cache" folder (Handy sliced models?) on my P1S, so it looks like my machine definitely supports folders at least. I am located in the UK and bought it late 2025.

AFAIK, the hidden internal USB port is intended to charge a phone/other device used as a "touch controller".

I don't like their closed-source control and the way they've managed local integrations, but I also want to accelerate making things with a printer that just "prints" (akin to how some will buy into the Apple ecosystem for something that "just works"). I've now sold my previous open-source Klipper/Mainsail printer which I heavily modified.

If/when Bambu makes their ecosystem unbearable for me, I will switch away (probably to a Prusa). For now, the ease of use of the machine has led to much more things being made as I can trust it to work accurately and reliably.

[jacquesm]

Yes, this is the dilemma right now. I have 30+ prusa's and 43 Bambu's and another dozen or so K1s. They all have their quirks, weaknesses and strong sides but for sheer reliability and volume you can't beat the Bambus. But for development work I'd much rather have the oldest bedslinger that I have because it is so incredibly precise, even if it is terribly slow as well. K1 I would not recommend for anything, too fragile and too irregular from one machine to another, each is a different printer. To get to that level of lack of consistency must have taken some real thinking.