Filamentsensor doesn't work correctly
Hi all,
at the moment my MK3s has the problem that if I set the filament sensor to on, I can load the filament (the sensor recognizes the filament and load it to the nozzel) but if I start a print it starts to print the prime line but than wants to change filament. If I do the filament change the extruder tries to restart the print but instantly come back to the filament change.
I opent the extruder and looked at the filamentsensor, the mechanism seems to move with the magnets like it should. If I try to load the filament the sensor recognizes the filament when I put it in.
Any suggestions?
RE: Filamentsensor doesn't work correctly
I am experiencing the same thing. I just upgraded from Mk3 to MK3s.
Any ideas?
Thank you.
RE: Filamentsensor doesn't work correctly
Both cases Prusa recommends disabling the filament sensor until you have time to go in and fix the problem. They have a blog post about the stuck flag or whatever the problem is. You can also contact support via CHAT and ask for guidance.
RE: Filamentsensor doesn't work correctly
Did you read the FAQ chapter about the filament sensor in the handbook?
If you would have an MMU2S I would recommend to adjust the sensibility, but on a plain MK3S this isn't an option (as far as I know).
Maybe the lever sticks a bit. In this case, you could loosen the screw a bit so it can move more freely.
RE: Filamentsensor doesn't work correctly
@lichtjaeger
What do you mean by adjusting the sensitivity? I have MK3S/MMU2S and started having this problem today after calibrating the IR Sensor. I'm also getting tool change problems, but that's in a separate thread (will not change filaments if using extruder 1; testing other extruders now). I've already cleaned everything out and have reflashed firmware.
RE: Filamentsensor doesn't work correctly
What fixed it for me was putting a thin spacer (cut from a Live Z disk) under the IR sensor board.
Make a screw hole before you cut it out of the material.