@dc42
I am still having this problem, but think it could be related to pressure advanced. I wasn't thinking about it before as I stopped using it. And only use the filament sensor during long prints. I can't say forsure if I have been using them together every time the issue happens or doesn't happen, but have been trying to remember to enable pressure advance more often during test prints (half way) to see how much of a difference it can make. I have just left it on and doing another test overnight. Enabled the magnetic sensor and right when it started to pull actual numbers/calibrate while enabled it stopped the print.
Curious on your thoughts DC42. Thanks!

@Micha you can buy it direct from the Duet website I believe. The website should have a list of suppliers.

@57buick I have replied on your other thread. Posting to multiple threads does not help.

@57buick Yes it's optional, reason is explained here:

https://duet3d.dozuki.com/Wiki/Duet3dFilamentMonitor_RotatingMagnetVersion#Section_After_the_extruder

replacement received and all is working as it should now

@KenD said in missing spring and idler:

I just received mine and the Idler and spring assembly is missing from mine as well.

I'm sorry about that. Please ask for a replacement.

Great, thank you.

your right. i ran a gcode print on small item cut the filament. it worked. thank you

@warpster yep, linked from the documentation:
https://duet3d.dozuki.com/Wiki/Duet3dFilamentMonitor_RotatingMagnetVersion#Section_Housing_models

I should not edit documentation this tired from ERRF. Updated again, the image is actually correct this time.

Pretty neat.
Both were taken from the same gcode and filament.

M591 D0
Duet3D laser filament monitor v1 on input 3, disabled, allow 10% to 120%, check every 6.0mm, current pos -5.2, brightness 76, shutter 17, measured min 34% avg 42% max 49% over 5778.8mm

M591 D0
Duet3D rotating magnet filament monitor v2 on input 3, disabled, sensitivity 28.40mm/rev, allow 10% to 120%, check every 3.0mm, current pos 62.2, measured sensitivity 25.05mm/rev, min 96% max 107% over 109.1mm

How does the Sensitivity work or, being measured on the magnetic sensor?

@nuroo Please look out for frame errors reported by M122.
They went away with my replaced monitor, and so did the ultra-low min-values it got before.

thanks for your reply @T3P3Tony

I will use that and see how I go. It makes sense to use the longer one. I did a print last night that had a fair bit of retraction and it only got down to a min 94% and a max of 107% over 9m of filament using the newer mm/rev.

Sam

@dc42 @T3P3Tony
The replacement filament monitor arrived today - thanks for the really fast and painless swap!

Just installed, gave it a quick go ...

no more "Sensor not working" messages M591 D0 reports quite usable data Duet3D rotating magnet filament monitor v2 on input 3, disabled, sensitivity 25.33mm/rev, allow 85% to 115%, check every 3.0mm, current pos 14.8, measured sensitivity 25.21mm/rev, min 90% max 110% over 1252.5mm M122reports no frame errors anymore Extruder 0: pos 14.77, ok, measured sens 25.21mm/rev min 90% max 110% over 1252.5mm, errs: frame 0 parity 0 ovrun 0 pol 1 ovdue 0

Will do some more tests in the coming days, but those are by far the best results I was ever able to get!

Thanks to both the teams of Filastruder and Duet3D for your great support!
Much appreciated!

FWIW... I may have found the cause of my 'pausing' issue. It appears that it was caused by a short of some kind on the extruder stepper motor, on the duet side(?). I repositioned the cables around the stepper motor connectors on the duet side and so far have not experienced this issue.

I also want to add that in addition to the issue being intermittent, it was present whether the rotating sensor was enabled or disabled (so it was not a problem with the sensor or sensor config).

@dc42 Thanks got getting back, I've moved it to the other thread https://forum.duet3d.com/topic/11598/pause-g-is-not-working/2

@hornetrider no currently - worth adding it as a topic in the firmware wishlist category.

Thank you. Is there a good way to track extruder filament usage? where do you even find it?

@fairladyz said in Using rotary encoder for filament monitoring:

Has anyone tried using a rotary encoder for this? Any advice on how I could go about wiring and configuring a rotary encoder for filament monitoring?

99p filament monitor
99p filament monitor again

It's still in use on my cartesian (diy i3 clone) and working well, although I had to set the parameters looser than I expected due to the error that accumulates with retraction and not actually knowing which way the encoder is moving when a transition comes through. I think to make this work well one would need to develop a model of the encoder in the duet firmware and predict the transitions based on the instructed filament movement.