4B. Upgrading the Nextruder (MMU3)
Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade 89
STEP 37 Connecting the MMU3 unit
On the back of the unit, connect the MMU-Printer cable.
Using a zip-tie, attach the cable in the marked position.
STEP 38 Haribo Zeit!
Now you feel like you can fix
anything, right? :)
Eat two gummy bears.
We're almost there. Let's continue
with chapter 5. Upgrading the
connectivity.