This summer, we are refreshing the entire lineup of our 3D printers. The new Prusa XL+, CORE One+ (Gen 2), and CORE One L+ bring cleaner print starts, better-looking surfaces, easier operation, and improvements based on feedback from users and the...
https://www.prusa3d.com/product/original-prusa-mmu3-for-mk4s-mk3-9s-full-kit-2/
It’s the Prusa version of the multi color filament feeder.
That’s really cool.
I wonder if the design is open, its out of my price range but it looks like it’d be pretty fun to build.
https://github.com/ArmoredTurtle/BoxTurtle
There are open designs. I know this one used to be popular.