Nonstop warning messages

Yonkiman

I mentioned a specific instance of this problem a month ago. But I've had it off and on for the two years or so I've had a Duet. I just powered up my printer for the first time in a week, homed the axis, performed a 5 point bed compensation, and now I'm getting a constant stream of " Warning: Triangle interpolation: point outside all triangles!". I can't stop it. I reload the DWC web page and it keeps going.

I know it will stop if I reset the printer, but then I have to home and level again.

Is there a way to make it stop happening, or at least stop it when it does happen?

Edit:
Firmware Version: 2.02RC2(RTOS) (2018-09-07b2)
WiFi Server Version: 1.21
Web Interface Version: 1.22.3

dc42

I suspect there is something wrong with the coordinates of the 5 probe points you are using. Please tell us what size bed you are using and share your bed.g file.

Most users have moved on to mesh bed compensation.

Yonkiman

@dc42 My Z sensor has more variation than my bed, so I just do a 4 point to make sure the 4 corners aren't out of whack and then I print with no bed compensation. That part's all working fine.

The problem is the non-stop repeated messages. There's no way to stop them or acknowledge them and stop them. And it's not just bed levelling - earlier this month it was a heater fault (messages continued after fault was cleared). I've had this problem with various messages ever since I started using the Duet ~2 years ago. As long as the Duet doesn't send me an error message (which is fortunately 99% of the time) there's no problem. But I thought after a few years I should figure out root cause and make it stop.

Thanks

dc42

There used to be a known cause of this behaviour, which was triggered if you connected multiple devices to the Duet over http and then one of them was turned off or went to sleep without sending the Duet a disconnect message first. But that was fixed several firmware versions ago.

Are you running DWC on multiple devices, or using any other program to connect to the Duet over http?

Yonkiman

@dc42 I don't think I had multiple http connections (though why should that be a problem - isn't one of the advantages of web-based control that I can run it on my PC and then check the print remotely on my phone?), but I initially had the USB serial port connected.

I had literally just powered up the Duet. I guess it's possible that I left a web browser open to my Duet's page somewhere from the last time I used it (about a week before this) - would that cause a problem?

dc42

@yonkiman said in Nonstop warning messages:

I had literally just powered up the Duet. I guess it's possible that I left a web browser open to my Duet's page somewhere from the last time I used it (about a week before this) - would that cause a problem?

No, it wouldn't.

Are you using a program other than DWC to upload files to the Duet?

Yonkiman

@dc42 Nope - I don't even know how to upload files to the Duet without DWC.

dc42

Run M122 and see how many HTTP sessions it reports.

Yonkiman

Thanks - I'll try that the next time it happens.