Prusa Research MMU3 Manual Del Usuario página 139

PASO 24 SuperFINDA calibration
Take a piece of filament with a sharp tip and insert it into the selector through the
brass threaded opening on the front.
Take a look at SuperFINDA from above and watch for the little red light inside the
sensor to turn off when the filament raises the steel ball inside.
Red light = no filament detected = FINDA 0
No light = filament detected = FINDA 1
If the light is still on, lower the SuperFINDA slightly.
If the light doesn't go on, raise the SuperFINDA probe by releasing the screw by its
side, moving the probe, and tightening the screw back up.
Watch the sensor readings on the LCD ( Menu -> Support -> Sensor info -> FINDA
) Note, there is a slight lag in the sensor's readings on the LCD; proceed slowly.
Keep repeating the test by inserting and removing the filament. Watch the values
on the LCD. Adjust the SuperFINDA height accordingly until you get reliable
readings from the sensor each time you insert and remove the filament.
10B. Configuración y Calibración MK3S+
Ensamblaje Original Prusa MMU3 139