Filament monitor reported to much movment
I have a magnetic filament monitor which run smoothly form almost a yeat and many prints, but lately I am receiving this error How can I get rid of it. The print run smoothly and everything seems ok so even after resuming the print.
Iam trying to investigate the cause of this error.
I did a M591 D0 R-1
but my value are a lot worse then before .
now I have
Duet3D rotating magnet filament monitor on endstop input 3, enabled, sensitivity 28.80mm/rev, allowed movement 0% to 160%, check every 3.0mm, current position 255.2, measured sensitivity 23.05mm/rev, measured minimum 114%, maximum 135% over 39.4mm
last time a did a check tolerance +12% -9%
Can someone explain me this value?
Could it be that the magnet on the rotating shaft is no longer aligned with the centre of the sensor chip?
Thank you for answering me .
I cleaned and checked the sensor and it seems fine.
The starnge things , for me is that minimum and maximum are over 100% but the variation is still low
measured minimum 119%, maximum 136% so 17%.
I can't undestand why before I had always a variation of about 30% but -10% +20%