Ok, So here is another test:

Black ABS - Matterhackers - Benchy Test
Calibrated Steps/mm 441

M591 D0

Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position -9.6, brightness 94, shutter 17, measured minimum 94%, average 100%, maximum 105% over 3972.5mm

I am using the fully enclosed mount provided in the documentation and it is mounted about 3" above the extruder. I am using a bondtech BMG extruder direct drive.

I am going to run the test again now with white ABS.

Did you cut the trace to make it 3.3v and not 5v? Also, is the bl-touch blinking red or steady red or off?

I think, the good thing about gcode is, once you learn it, what you see is what you get. Some firmwares every time you want to change stepper current or fine tune steps per mm you gotta to recompile and upload. Yuck.

There is a list of g-codes, getting the first layer level and adheared to the bed is more difficult than gcode is....

I’m sorry, but overall, judging from your posts, you have a sloppy bios and inattention to detail. Is it the boards fault or is it the builders fault. Loose connections - builders fault...

I would be nice to have a BING to let you know when the heatbed is heated up or when the hotend is ready.. It takes about 15-20minutes for my heater to get up to snuff and I get distracted browsing for porn research material, but if there was some sorta chime to let me know the printer is ready to go that would be neat

I think option 3 is best. If only because that is an existing standard.

@t3p3tony said in Laser Filament Monitor - test results:

@qdeathstar said in Laser Filament Monitor - test results:

Ok, last ABS test

Matterhackers Light - Blue ABS filament - Benchy Test

Calculated Steps/mm 424

M591 D0
Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position -2.4, brightness 92, shutter 11, measured minimum 0%, average 93%, maximum 102% over 3975.4mm

minimum 0?

do you mind checking that again?

M591 D0
Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position -3.0, brightness 91, shutter 11, measured minimum 88%, average 95%, maximum 102% over 3973.3mm

Better result this time.

short 12v to 5v is a decent guess... hotend and fan perhaps.

Yes, i can rerun that test later today. I think that might have been a real slippage, as this blue filament feels pretty slippery. I also noticed while i was loading it it didn't move the first time i pressed "extrude" but i chalked it up to me accidentally pressing the "retract" button instead. Its about 2 years old....

Ok, last ABS test

Matterhackers Light - Blue ABS filament - Benchy Test

Calculated Steps/mm 424

M591 D0
Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position -2.4, brightness 92, shutter 11, measured minimum 0%, average 93%, maximum 102% over 3975.4mm

I am under reading again using transparent-green ABS

Hatchbox Transparent Green - Benchy Test

Calibrated Steps/mm 424
Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position 4.6, brightness 83, shutter 17, measured minimum 45%, average 69%, maximum 89% over 3968.1mm

Matter Hackers Black ABS - Partial Benchy Test

Steps/mm 424
M591 D0
Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position -8.1, brightness 89, shutter 17, measured minimum 93%, average 96%, maximum 99% over 366.2mm

Im a little lower than my previous Black ABS test, but the steps/mm is also lower for this test (so it makes sense).. But I'm not way down near my white ABS or Transparent Green ABS....

Materhackers Lime Green (Opaque Neon) ABS Filament - Benchy Test
Calibrated Steps/mm 424

M591 D0
Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position -3.2, brightness 94, shutter 13, measured minimum 75%, average 91%, maximum 98% over 3974.8mm

White ABS - Matterhackers - Benchy Test
Calibrated Steps/mm 424

M591 D0

Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position 2.5, brightness 88, shutter 7, measured minimum 43%, average 71%, maximum 87% over 3970.6mm

Sure, i will re-run the last test. The light blue filament is about 2 years old, so im not sure if that might have something do do with the reading. I think it might have detected some real slippage there.

Just a few layers in, the laser monitor appears to be consistently under reporting the white abs. I am going to let this test go, double check my steps/mm calibration, then retest with my work lights off...

Ok, So here is another test:

Black ABS - Matterhackers - Benchy Test
Calibrated Steps/mm 441

M591 D0

Duet3D laser filament monitor on endstop input 3, disabled, allowed movement 40% to 120%, check every 3.0mm, current position -9.6, brightness 94, shutter 17, measured minimum 94%, average 100%, maximum 105% over 3972.5mm

I am using the fully enclosed mount provided in the documentation and it is mounted about 3" above the extruder. I am using a bondtech BMG extruder direct drive.

I am going to run the test again now with white ABS.