Large format printer axis stops for a few seconds.

[Dutchprinting]

Hi Guys,

i have build a large format printer (10x5x4m) and running on the duet system. I have already printed some huge print.
Now in 4 days time i've started the exact same gcdoe 4 times and the 4th time it did something very weird.
Here is the video for explanation: (problem at 2:38)
https://www.youtube.com/watch?v=Ih0jrkUJZYs

To me it looks like the Y axis just stopped working for a few seconds and then picked up again. I checked all the wiring and the other camera's for blinking lights on the boards and everything looked fine.

It is good to mention i did not turn off power to the printer these 4 days. That should not be an issue as some prints take more then 4 days to finish.
The gcode itself cannot be the problem bc that has done perfect in the past days. Now suddently out of nowhere it dit what is shown in the video.
Recreating the issue while printing would take about 6 hours and alot of $$ in material. so thats not an option.

added is the M122, about 14h later than the pause-print as i was not at the shop when it happened.

Hope someone can help figure this out.

EDIT: found out the Y axis motors are skipping steps on the belt rack system..

Kind Regards,

Sten

[oliof]

so the issue happens right as two of the cameras glitch out?

[Dutchprinting]

@oliof Yes, at that moment. they glitch out all the time btw, bc its a ''stream'' from the security system. The camera's NVR is on a seperate fuse and on a UPS. The printer got a whole different power supply.

[Dutchprinting]

Please mark as solved / delete topic

[Phaedrux]

what was the problem and solution?

[droftarts]

@Dutchprinting said in Large format printer axis stops for a few seconds.:

10x5x4m

Okay, I think that's about the biggest printer volume I've heard of. Good job!

@Phaedrux He added solution to his first post, Y axis motors skipping.

Ian