Lost communication with MCU 'toolboard_t0' | Rat Rig Community [Unofficial] | Page 1

misty bough Jan 7, 2025, 11:01 PM

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Hi, I am at a loss with my Vcore 4 400, it has been plagued with Lost communication errors. It worked great for the first month and then I would get Timeout with Lost communication with MCU 'toolboard_t0' errors a few hours into prints. I replaced the USB-C cable recrimped the power to the toolboard and then the printer worked great for another month or so and now I am getting the same issue again...

📎 klippy6.log

upbeat gorgeBOT Jan 7, 2025, 11:01 PM

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fallow dew Jan 7, 2025, 11:22 PM

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Is the USB cable well attached at both ends, zip-tied to the printhead? Quality multi-strand cable so it doesn't die so fast?

marble frigate Jan 7, 2025, 11:24 PM

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Yeah this sounds like a wiring issue

misty bough Jan 8, 2025, 1:14 AM

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fallow dew Is the USB cable well attached at both ends, zip-tied to the printhead? Quality ...

Yeah it is

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Why do the usb c cables fail so often?

marble frigate Jan 8, 2025, 1:17 AM

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misty bough Why do the usb c cables fail so often?

Show us a picture of your entire cable. People have had their USB C cables for years without issues

fallow dew Jan 8, 2025, 2:49 AM

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It isn't a ton, but mines been going for ~700 hours

misty bough Jan 11, 2025, 3:48 AM

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@fallow dew @marble frigate Replacing the USB-C cable resolve the issue pepehands

#Lost communication with MCU 'toolboard_t0'