Unsolved Duet 3 mini5+ nightly restarts 3.5.2

[Chriss]

@droftarts said in Duet 3 mini5+ nightly restarts 3.5.2:

Could you try the 3.6.0-alpha.4 build?

Your wish is my command, but not before mid of the week. I'm installing a new hardware feature at the moment. I will do the upgrade asap. (Any new traps you want to tell me?)

Cheers, Chriss

[droftarts]

@Chriss There's a few things not fully working, check the release notes: https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.x-Beta

Ian

[Chriss]

@droftarts said in Duet 3 mini5+ nightly restarts 3.5.2:

@Chriss There's a few things not fully working, check the release notes: https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.x-Beta

I just upgraded the printer, including the DWC, some error message popped up in the DWC that some versions are not compatible. Does the DWC version look OK to you?

Cheers, Chriss

[jay_s_uk]

@Chriss it's the mismatch between DWC (alpha2) and the main firmware (alpha4).
I'm not sure there has been an alpha 4 release of DWC.
You can ignore the error as there's nothing breaking between those version mismatches

[Chriss]

@droftarts I used the same object I always had a problem with and it finished the first time successfully.
I'm not sure how much this will tell us, a lucky punch maybe? Problem solved?
The only problem I see now is the quality:

I'm not sure where this came from. I do not see that on objects which are not as high as this object is. What shall I do now? Bring back the old version and be unable to print objects which this dimension? Or drop the bench board in and go back to the latest stable version and test again to see whether the quality is better than?

Cheers, Chriss

[droftarts]

@Chriss You'll need to retune Pressure Advance with the 3.6 release. It should work much better!

Ian

[Chriss]

@droftarts I saw that in the release notes. My PA dial in process came out with very much the same value as it was before.
I will perform the test again with a material I know better, this grey filament (ABS+) is new for me, the temperature may not be ideal for this material too. Maybe to much rush this time.
But I'm confused how the gab at the seams piled up over the layer hight, I never experienced that before.

[Phaedrux]

@Chriss said in Duet 3 mini5+ nightly restarts 3.5.2:

But I'm confused how the gab at the seams piled up over the layer hight, I never experienced that before.

That is common when there is under extrusion on unretract at layer change.

[Chriss]

This post is deleted!

[Chriss]

@Phaedrux

The top line is without any PA. I have the feeling that I do not need any PA at all. Can that be possible with the alpha?

Or I print to slow.

Cheers, Chriss

[Chriss]

That is the result with no PA at all.

[oliof]

@Chriss what are your retraction values?

[Chriss]

@oliof I have to admit that I do not know that anymore at this print. I shift here some profiles in SuSi back and forth. The current print with 5.8mm and 35 and 25mm/s look far better.
I know that 5.8mm are far to much for a direct dive, but I feel a bit helpless so I just tried the Voron 2.4 standard profile and some others.

[oliof]

@Chriss try 2mm @40mm/sec, if that's not better, give it a quarter to a half millimeter extra unretract.

[Chriss]

@oliof I do not why but the "avoid crossing perimeter = true" solved it so far with the standard profile. Only the first layer looks a bit strange now:
file:///home/chriss/Downloads/3.6.0-alpha.4/Pics/IMG_0612.JPG
I can not stop thinking that there is something strange ongoing with PA, which is off with my setup at the moment. The top side is overextruded at the touchpoints with the walls. That is more than strange with ABS+ and a EM of 0.88.

[Chriss]

@droftarts Back to topic..... I tuned a bit and solved my other problem with the missing extrusion. The printer just finished the 2nd 160mm print. So it is a 100% success rate now, I would not put a guarantee on it but it seems to me that the current alpha solved the reboots. But please to not count me on that. I did two prints only and I can not do more of them for now. The prints still look horrible in may ways, I need to tune the printer a bit further before I can do more tests. This thing eats to much filament at the moment.

Cheers, Chriss

[Chriss]

@droftarts

I'm afraid that I have to move back to the stable FW. I have soo many unexpected behaviours with the alpha since I print with it. I can not stand than anymore. The last pei sheet I sacrificed was to much. I saw steppers tuning into the wrong direction for some mm which ended in a bend gantry etc. Sorry, but I'm out of this testing, for a while now. My printer has to finish some prints and I can live without the hight but not with this strange behaviours I have seen in the last days.

I think that we can come to the conclusion that it is very likely that the next release will fix the reboot problems at least on my end. I'm not fully satisfied with this conclusion but it is how it is for now.

Cheers, Chriss

[jay_s_uk]

@Chriss have you reported any of these and have you been keeping up with the alpha releases?

[Chriss]

@jay_s_uk None if them to be honest. I had to switch back to the stable firmware to get some urgent needed parts out of the print bed, therefor was not enough time to take a note on every problem I experienced. And I have to admit that I'm not convinced that all of them where real problems with the firmware and not with my config.

I do not tend not to report a problem if I have not seen it more than once and If I'm not aware of any way to reproduce it. Everybody's time has a value and I try to not send people into the direction of ghost I possible saw.

Let me know if you think that this things may be interesting and I can put my observations into a new threat.

Cheers, Chriss

[droftarts]

@Chriss Fair enough, and thank you for you help and feedback so far! With so many custom machines running RRF, and the complexity of the firmware, whenever there are major changes it is difficult for us to test all variations of machine. We try to have a mix of machines to test on, but there's always gaps. A big thank you to everyone for taking part in alpha/beta/rc firmware testing, and your feedback.

Ian