Prusa Research MMU3 Manual Del Usuario página 70

PASO 3 Peeling the plates
PASO 4 Assembly (part 1)
Insert the protruding parts of the Buffer leg into the marked openings in the
Segmenter. Push it all the way in.
Insert four M3nS nuts into the small marked openings in the Segmenter. Push
them all the way in.
Insert the remaining two M3nS nuts into the marked openings on the Printer
holder. Push them all the way in.
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7. Montaje del Casete del buffer
Ensamblaje Original Prusa MMU3
Peel the protective layers off the
both sides of the buffer plates.