Duet 3 losing connection whilst printing

gloomyandy

Looks like your heater may be introducing noise into the Duet/SBC connection. Obvious things are to check how the various cables are routed. How long is the cable between the rPi and the Duet? Perhaps some photos of how you have things set up?

camcamnz

@gloomyandy That was my first thought as well, so I moved the rPi out of the enclosure with the other electronics until it was sorted. It is that cable that came with the Duet ![alt text]

Thoma308

@gloomyandy said in Duet 3 losing connection whilst printing:

ter may be introducing noise into the Duet/SBC connection. Obvious things are to check how the various cables are routed. How long is the cable between the rPi and the Duet? Perhaps some photos of how you have things set up?

SOLVED:
The Heater is not the problem
I plugged everything back in on the PI, keyboard, mouse,
HDMI, USB touchscreen and connected the PI to the LAN.
Also reinstalled Anydesk as a remote terminal.
I accessed everything via http://duet3.local/ and locally via the screen on the PI again.

AND NOW THE SOLUTION:
The separtate power supply is the problem. You can power the SBC directly and power the Duet separately.
there are jumpers for that on the board.
And that was the problem with two separate power supplies.
I now have a 4A power supply directly on the PI and through that I also feed the 5V in the Duet.
-> and that was the solution

2h printing without any error message

https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview#Section_5V
SBC->5V and 5V -> SBC both are now connected

camcamnz

@Thoma308 In that case, your problem is different to mine, as I already tried all the variations of powering pi & duet

Thoma308

But it probably has to do with the power supply. I would make some more attempts in this direction. I use a Raspberry Pi 4 Model B 4GB

Dan1990

I have the same problem but when I did connect it via duet->SBC still giving the same issue.

Thoma308

@Thoma308 said in Duet 3 losing connection whilst printing:

SBC->5V and 5V -> SBC both are now connected

For me it runs perfectly now, but only with the power supply from the Pi and both jumper set
SBC->5V
5V -> SBC

Dan1990

@camcamnz

how did u access the:

/varlog/syslog

camcamnz

@Dan1990 via ssh/putty.
There is a typo it is actually /var/log/syslog
I ran the following command and watched the output once whilst testing:
tail -f /var/log/syslog

Dan1990

@camcamnz

Thanks,

I have the same issue as you, and I think I have found a lead to solve it. I disconnected the bed and for now, everything looks fine.