3.5.0 b2 - Magnetic Filament Monitor

PetrKroupa

Let's just say this night was a little choppy. I am printing one color project where there are only 18 tool changes. Start printing without any problems. As soon as the print continued to the upper sections where there are small fillings, the MFM started to get angry. The problem is why? Even according to the log, the set tolerance was not exceeded.

I even have a video showing that nothing bad happened. Ideas?

video

3/5/2023, 7:28:15 AM	M24
Printing resumed
3/5/2023, 7:27:54 AM	filament error
3/5/2023, 7:27:54 AM	Duet3D rotating magnet filament monitor v3 on pin 121.io1.in, enabled, sensitivity 25.00mm/rev, allow 50% to 200%, check printing moves every 10.0mm, version 3, mag 129 agc 72, measured sensitivity 25.95mm/rev, min 92% max 107% over 8365.7mm
3/5/2023, 7:27:54 AM	Printing paused at X206.0 Y189.4 Z24.5 U1294.0 V20.5
3/5/2023, 7:27:49 AM	Resume state saved
3/5/2023, 6:36:51 AM	M24
Printing resumed
3/5/2023, 6:36:03 AM	Duet3D rotating magnet filament monitor v3 on pin 121.io1.in, enabled, sensitivity 25.00mm/rev, allow 50% to 200%, check printing moves every 10.0mm, version 3, mag 129 agc 74, measured sensitivity 25.92mm/rev, min 92% max 108% over 20996.5mm
3/5/2023, 6:36:03 AM	filament error
3/5/2023, 6:36:03 AM	Printing paused at X26.6 Y280.1 Z23.3 U1294.0 V20.5
3/5/2023, 6:35:57 AM	Resume state saved
3/5/2023, 4:27:00 AM	M24
Printing resumed
3/5/2023, 4:25:31 AM	filament error
3/5/2023, 4:25:31 AM	Duet3D rotating magnet filament monitor v3 on pin 121.io1.in, enabled, sensitivity 25.00mm/rev, allow 50% to 200%, check printing moves every 10.0mm, version 3, mag 128 agc 74, measured sensitivity 26.00mm/rev, min 92% max 107% over 31782.1mm
3/5/2023, 4:25:30 AM	Printing paused at X150.2 Y224.6 Z20.0 U1294.0 V20.5
3/5/2023, 4:25:27 AM	Resume state saved
3/5/2023, 1:12:55 AM	M24
Printing resumed
3/5/2023, 1:11:38 AM	Duet3D rotating magnet filament monitor v3 on pin 121.io1.in, enabled, sensitivity 25.00mm/rev, allow 50% to 200%, check printing moves every 10.0mm, version 3, mag 128 agc 75, measured sensitivity 25.92mm/rev, min 92% max 107% over 26254.9mm
3/5/2023, 1:11:38 AM	filament error
3/5/2023, 1:11:38 AM	Printing paused at X357.7 Y138.1 Z14.6 U1294.0 V20.5
3/5/2023, 1:11:34 AM	Resume state saved
3/4/2023, 10:32:32 PM	M24
Printing resumed
3/4/2023, 10:18:06 PM	filament error
3/4/2023, 10:18:06 PM	Duet3D rotating magnet filament monitor v3 on pin 121.io1.in, enabled, sensitivity 25.00mm/rev, allow 50% to 200%, check printing moves every 10.0mm, version 3, mag 129 agc 76, measured sensitivity 26.28mm/rev, min 58% max 113% over 119487.3mm
3/4/2023, 10:18:05 PM	Printing paused at X357.1 Y138.1 Z10.4 U1294.0 V20.5
3/4/2023, 10:18:00 PM	Resume state saved
3/4/2023, 3:47:52 PM	Upload of config.g successful after 1s
3/4/2023, 3:46:38 PM	m566 e1000
3/4/2023, 8:38:55 AM	100 points probed, min error -0.165, max error 0.413, mean 0.186, deviation 0.099
Height map saved to file 0:/sys/heightmap.csv

T3P3Tony

@PetrKroupa are the M591 outputs generated by your filament-error.g? I wonder what they would report of you sent them manually before you resumed

PetrKroupa

@T3P3Tony - Yes.

Once it happens again. I'll try the M591 manually.

filament-error.g

if sensors.filamentMonitors[0].status = "sensorError"
	echo "SensorError-0 Continuing to Print"

if sensors.filamentMonitors[0].status != "sensorError"
	M25 
	set global.beepbeep1 = 1
	M591 D0
	M118 P0 S"filament error" L2```

PetrKroupa

@PetrKroupa - happened againg. And yes, after manual M591 result is same.

For config etc, it is same printer on my second post woth M929 post.

PetrKroupa

@T3P3Tony - I checked the video again in the afternoon and again nothing interesting. The LED on the MFM blinked normally exactly according to the filament and the print simply paused. Even according to the log, this should not have happened. Ideas?

T3P3Tony

@PetrKroupa We have now seen something that may be related on one of our test machines so will see if we can reproduce it again.

PetrKroupa

@T3P3Tony - I have a little update on that. There were enough parts to print and of course I ran out of filament. In the meantime, I received the new 6HC v1.02. I upgraded from v1.01 28V supply voltage to 45V. The filament arrived and I continued printing. The error no longer appeared. I have no idea how much difference there is in the FW for version 1.01 and 1.02, but maybe it will help you in your search.