Suddenly mcu unable to connect Vzbot/bttcb1

General Discussion
1

vzbot 330 based custom printer
robin nano v3 board
btt cp1 host

printer was working with no issues, today, woke up, tried to print, unable to connect to mcu
the host seems to work fine, i can connect to fluidd, etc
but printer never connects keeps ‘‘trying to connect’’ for ever
havent changed any configs or anything else since yesterday.

bellow, my latest klippy log:
klippy(19).log (248.3 KB)

2 
[Errno 2] No such file or directory: '/dev/serial/by-id/usb-Klipper_stm32f407xx_3C004F001850314335393520-if00'

This means no printer board with the respective serial path is found to be connected to your CB1 host. This is, in the first place, an error from the Linux OS that no such device is found.

  • Check powers and cables
  • Check with the dmesg procedure what is “seen” by the operating system