They have their place. If you only do multicolor prints rarely, but change materials between prints a lot, that’s where they excel.
I have both an MMU (Prusa MK3S + MMU 2) and a toolchanger (very custom Voron 2.4 with Tapchanger), and the MMU gets used plenty to swap filament between prints. I look at my toolchanger as being for color prints, and I usually keep 6 colors of PETG on it. My MMU gets used more as the functional printer with all the engineering filaments on it like TPU, PC, ABS, PA. I rarely have to change filament rolls with this setup.
I am also looking at building one of these Swapper3Ds, which should prevent all the waste from printing multiple colors with the MMU.
They have their place. If you only do multicolor prints rarely, but change materials between prints a lot, that’s where they excel.
I have both an MMU (Prusa MK3S + MMU 2) and a toolchanger (very custom Voron 2.4 with Tapchanger), and the MMU gets used plenty to swap filament between prints. I look at my toolchanger as being for color prints, and I usually keep 6 colors of PETG on it. My MMU gets used more as the functional printer with all the engineering filaments on it like TPU, PC, ABS, PA. I rarely have to change filament rolls with this setup.
I am also looking at building one of these Swapper3Ds, which should prevent all the waste from printing multiple colors with the MMU.