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MK4S + MMU3 - can´t access extruder for filament sensor calibration.
Hello, i recently bought MK4S with MMU3 already installed. All tests went good, but i got stuck on Filament Sensor Calibration - the printer asks me to push filament into the extruder but the MMU3 unit is blocking the way. I looked on the internet and into the user manual, and i saw that i need to remove the fitting and PTFE to directly access the extruder, but the guide was for blue fittings and i have black ones. I tried to remove the PTFE (gently), but i wasnt able to remove the fitting. I also tried to set up the MMU3 to be able to get the filament in, but it cant be activated until i finish the calibration.
I guess this is a common issue, can someone help?
Thanks.
Veröffentlicht : 17/12/2025 5:24 pm