Laser filament monitor

T3P3Tony

@bluedust it works variably with different filaments, that is a function of the laser sensor itself.

It's definitely worth reading the testing thread:
https://forum.duet3d.com/topic/6092/laser-filament-monitor-test-results/

I have had it work well enough with all the types I have tested it with but others have had very bed results with PETG for example.

siblues

I hope they get it straightened out since I am very interested in purchasing one myself.i also am in the process of switching over to the Duet WiFi and PETG.

gavatron3000

@T3P3Tony I know this is off topic but will the magnetic version of filament sensor be available shortly?

T3P3Tony

@siblues it's not really something that will be completely solved for all filament types due to their physical properties.

@gavatron3000 is is progressing but slowly due to multiple redesigns due to housing and mechanical parts refinement.

siblues

Well I meant well enough to be ready to sell to the public.I would be interested in either sensor.

dc42

Here's another idea for the laser filament monitor housing. Why not angle the filament path so that the filament passes at a closer height above the laser than it does above the image sensor? if the angle is chosen carefully, more of the laser light should be reflected into the image sensor. This should be detectable as a decrease in the reported shutter value.

go

Hello,

I am testing laser filament sensor. Is it possible to translate its current pos into millimeters while not printing? Or is it possible to query mm data also while not printing?

Sample response while not printing in reply-to: M591 D#
Duet3D laser filament monitor on input 4, disabled, allow 43% to 115%, check every 3.0mm, current pos -8.6, brightness 87, shutter 15, no calibration data

Thanks,

dc42

The "current pos" is in mm but it wraps around, between -10.24mm and +10.24mm AFAIR.

MrPsyco

Hi

I installed the laser filament sensor and everything seems to be working. I only have the problem that the printer does not pause when there is no filament left. I have written the M591 D0 P5 C3 R40:120 E3.0 directly to the configuration file so that it will be activated when the printer starts. what am I doing wrong? or have I missed something?

Thanks.

dc42

You missed out S1 in the M591 command.

MrPsyco

Thanks

tonyp

Is there any idea when this will be back in stock by the way?

BlueDust

@dc42
The example code doesn't have S0/1 in it. If you read further in the calibration steps is says add S0. I don't remember if I just changed it to S1 or if I read that further in the steps. Just saying it's not obvious until you read a bit more, and easily missed if you just look at the example code (as I usually do first).

dc42

I have updated the example to include the S parameter.

taglia

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