SV06 lost connection with mcu

General Discussion
1

Basic Information:

Printer Model: SV06
MCU / Printerboard: SV06 32-bit silent motherboard
Host / SBC: Raspberry Pi Zero 2 W with Waveshare USB hub
klippy(7).log (4.4 MB)

After i tried to print in an enclosure my printer has started to issue lost connection with mcu randomly while printing. i went through like 3 different cables yet the error persists. i looked into the klippy.log and im seeing that the bytes_retransmit value ramps up before shuting down and thats about the extent of my troubleshooting. i dont know if the mcu is at fault or the raspberry pi is and im debating if i should get a new mcu or rpi. The latest info in the klippy log is from when i tried to print sunlu pla+ without the enclosure.

thanks in advance!!

2

Hello @androo1461 !

Do you have some EMI producing devices near by the printer setup? Like ACs, washing machines, fridges, or other other high power things?

Also, is the RasPi properly cooled?

3

Thanks for the response!
The printer is far away from any high power appliances and regarding the rpi, when i used the enclosure i made a little hole for cables and had the rpi running dangling outside enclosure, a bit diy but the chip never went past 55C.

4

The thing is, that the USB chip on the Pi can get quite warm too.

5

yea to be fair i havent put a heatsink on that like i did with the cpu. the first time i tried to print in the enclosure i didnt move the rpi outside and i did see the mainsail interface freeze soo yea it may be cooked, me routing the cables and the pi after the fact outside was probably not enough. i think ill buy another pi and go from there

6

Issue fixed, seems the culprit was the hub all along, removed it and everything works perfectly

1 Like
7

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.