V-core3-Octopus 1.1 -Pi 3a+ Ratos 2.02 : stops printing randomly #solved

Hi all, This printer has been running about 2000 h. It started to stop at various height (tried different prints), without any error message. It seem to just reboot completely. I've upgraded from Ratos 1 to 2.0, reinstalled. Same bug !?! Only thing I did yesterday was change the Rapido nozzle, very carefully. I wish I knew how to diagnose klipper.log ....
11 Replies
blacksmithforlife
blacksmithforlife•15mo ago
I don't see anything useful in the logs. Have you changed anything recently besides the nozzle?
3DBoomer
3DBoomerOP•15mo ago
Nope.... Exact same gcodes run smoothly on her sisters
blacksmithforlife
blacksmithforlife•15mo ago
and they are also running ratos?
3DBoomer
3DBoomerOP•15mo ago
Same machines, same Ratos now (it was the last Ratos 1 in the team). What do you look for in the log to diagnose ?
blacksmithforlife
blacksmithforlife•15mo ago
I look for error messages. The only weird thing I see is a bunch of null bytes. I suspect your SD is just wearing out. Have you tried a different SD card?
3DBoomer
3DBoomerOP•15mo ago
I've flashed a new SD going from Rats 1 to 2, but I'll check that anyway. You're right, SD cards can be a pain
3DBoomer
3DBoomerOP•15mo ago
Ok : brand New SD card (write 60, read 65/sec) Same bug, it just reboots 🤨
blacksmithforlife
blacksmithforlife•15mo ago
well, if everything is working fine on other machines, makes me thing something hardware is at fault. Have you tried swapping a working PI with the one that keeps rebooting?
3DBoomer
3DBoomerOP•15mo ago
Good idea. Will try that. Thx 😉 I've swapped the PI 3A+ (I have them running on most of my printers) of this printer with another that works on another printer. I now get this message, just after primeblob "Unable to read tmc uart 'stepper_x' register DRV_STATUS " on one restart, it gave me the same message on extruder driver
3DBoomer
3DBoomerOP•15mo ago
3DBoomer
3DBoomerOP•15mo ago
I've updated another one on ratos 1. Same bug. Lack of compute power from the 3a+ ? OK, here was the thing : I updated ratos, incl moonraker, on sept 13. Pi 3A+ were overloaded. I then remembered this tip from miklschmidt https://discord.com/channels/582187371529764864/1092548862671065159/1092780438717726781 I also re updated moonraker, all running smoothly now.
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