The value 'my_sensor' is not valid for SENSOR

[frigid girder]

Getting this error after installing a BTT smart runout sensor. I have it plugged into the circled slots, set to PG15 (tried !PG15, same error).

Printer config is attached. Appreciate any ideas.

[tall abyss]

That's because you named it Filament_Sensor not my_sensor

[umbral patrol]

need to include your printer.cfg for analysis so we can see what/why the error is being thrown. ...but an error like that means the way/test/format you name your sensor is simply invalid.

[tall abyss]

he did, it is attached as printer4.cfg

[umbral patrol]

doooohL!

[frigid girder]

Oh was it supposed to be changed? I just copied it from the macros page. I'll try that.

[tall abyss]

well, you are telling your slicer that it is called my_sensor so either change it to be named that in your config, or change it in your slicer to match your config

[frigid girder]

Oooohhh OK thank you.

[frigid girder]

Sorry one last thing: Where do I change it in the slicer? Prusaslicer 2.6 in this case?

[tall abyss]

Where did you put my_sensor? That's where you need to change it

[frigid girder]

I didn't.

it was that way by default

[tall abyss]

my_sensor doesn't show up anywhere else in your printer.cfg. so that is coming from another place where you are specifying the sensor

[frigid girder]

Weird. Cuz I literally did nothing except copy the code from the macros page. Could it be in another cfg file?

[tall abyss]

Did you add another config file? Ratos by default doesn't have a filament runout sensor setup

[frigid girder]

Nope.

Tho since I installed the OS I have always gotten a "Filament sensor undetected" whenever it starts up.

And I've reinstalled the OS twice.

[tall abyss]

That makes no sense. Are you sure you didn't edit another file?

[frigid girder]

Positive.

[tall abyss]

https://github.com/search?q=repo%3ARat-OS%2FRatOS-configuration my_sensor&type=issues

my_sensor doesn't exist in Rat-OS.

[frigid girder]

Eeeyup. Didn't find anything like it online either.

[tall abyss]

So when you say you have reinstalled Rat-OS, what exactly did you do? Maybe you are restoring something and that has the my_sensor expectation?

[frigid girder]

Well I was getting an issue with it repeatedly so I took the microsd card out of the pi, formatted it, reflashed the OS to it and reinstalled everything including the mainboard drivers.

After which it was a few versions back so I updated everything on the config menu.

[tall abyss]

and reinstalled everything

What does that mean?

Rat-OS doesn't have you install anything

[frigid girder]

Installed Updates I meant. My bad.

But yeah I get the "no sensor detected" even immediately after I install it.

[deft bolt]

In the custom start gcode settings. I don't know why it's there by default, it is however commented out in the default presets.

[deft bolt]

Please post a screenshot of the error

[frigid girder]

The error is the title. The "no sensor detected" isn't an error so much as just a quick heads up it does before any print starts. It'll print after that.

[frigid girder]

Probably because of the custom gcode

[deft bolt]

Screenshot whatever you're talking about, it's not obvious what you're describing.

[frigid girder]

Alright. Lemme start a print

Gotta put a beacon on this thing or get that small space macro. probing takes longer than some prints.

[deft bolt]

Okay i can already say if you don't get the error/warning/whatever before it gets that far, then it's definitely your slicer configuration.

[frigid girder]

Yeah I found the gcode you mentioned and it had the 'my_sensor' line in it. I changed it to 'Filament_sensor' but I haven't plugged the BTT back in

[deft bolt]

You can up the probe speed:

[probe]
samples: 1
speed: 15
lift_speed: 30

[bed_mesh]
speed: 800

[z_tilt]
speed: 800

This already helps a ton

[frigid girder]

Oh good to know. does it retain accuracy?

[deft bolt]

If you have the performance config enabled you can increase your z_speed too

[printer]
max_z_accel: 1000
max_z_velocity: 50

[deft bolt]

Depends on the probe, 15 mm/s is fine with a SuperPinda

[frigid girder]

Bltouch

[deft bolt]

Oh yeah then no 😄

You want to keep speed at 7

The rest you can still do

And also you can enable touch probe mode.. Lemme find the config

[frigid girder]

Yeah I see what it was. I had the start gcode including ";enable this if you have a BTT Smart Filament Sensor
SET_FILAMENT_SENSOR SENSOR=my_sensor ENABLE=0" active in the start gcode.

[deft bolt]

[bltouch]
stow_on_each_sample: False
probe_with_touch_mode: True

I think that's how it works.

[deft bolt]

Yep that's the one

[frigid girder]

I changed it to 'Filament_sensor' instead of 'my_sensor'. I'll plug it back in and test it.

Just to be extra sure I should run a reverse bowden tube between the sensor and the extruder to reduce the slack, right?

[deft bolt]

yes