Basic Information: Printer Model: Ender 3 MCU / Printerboard: BTT SKR 3 EZ, EBB36 v1.2, Raspberry Pi 4 klippy.log (6.0 MB) Describe your issue: I keep getting the “Lost communication with MCU ‘mcu’” midway through a print. It’ll usually print for at least 30 minutes before Klipper reports: SH…

I was able to track down what the issue was. Even though I could not possibly imagine how it could be a hardware issue because the prints always failed roughly an hour in, I admit I was wrong, and it was one of the issues @Sineos linked above. It was a bad power supply, or more specifically, a pow…

Ender 3: Lost communication with MCU 'mcu'

General Discussion

JassMan23 December 1, 2023, 11:33am 4

Might this be relevant?

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Ender 3: Lost communication with MCU 'mcu'

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