OrangeStorm Giga Nozzle Crash & MCU Shutdown during Homing

General Discussion
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Basic Information:

Printer Model:OrangeStorm Giga
MCU / Printerboard:

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Host / SBC
klippy.log

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Hi everyone, I just unboxed my OrangeStorm Giga. During G28 Z (homing), the nozzle crashes into the bed.

The main problem: When I put a metal object under the probe to test it, the printer immediately gives a ‘Lost communication with MCU’ error and shuts down.

I’ve checked all cables and they seem fine. QUERY_PROBE shows ‘triggered’ when metal is present, but the motor doesn’t stop during homing—it just crashes the MCU. Is this a faulty probe or a short circuit in the wiring? Has anyone solved this?"

Describe your issue:

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2

Hello @Shabby !

Please attach the requested klippy.log here to your next post (please no file servers).

1 Like
3

Hello @EddyMI3D

klippy.log (58.8 KB)

Thank you for the guidance. Please find the attached klippy.log file as requested.

To summarize the tests I’ve conducted so far on my new OrangeStorm Giga:

  1. The Issue: During G28 Z (homing), the nozzle does not stop and crashes into the bed.

  2. MCU Crash: When I manually test the inductive probe by placing a metal object under it, the printer immediately throws a “Lost communication with MCU” error and shuts down.

  3. Current Status: QUERY_PROBE correctly shows “triggered” when metal is present, but it seems that the act of triggering the probe causes a critical communication failure or a short circuit that crashes the MCU.

  4. Hardware Check: I have visually inspected all cables and connections, and they appear to be secure.

I suspect there might be a faulty probe or a short in the toolhead wiring that triggers when the sensor signal is sent. Looking forward to your analysis of the logs.

Best regards,

4

Hello @EddyMI3D

Hi, thank you so much for the tip! You were absolutely right. The homing brackets on the gantry were indeed installed backwards. Because the sensor couldn’t ‘see’ the metal, it never triggered, which caused the nozzle to crash and subsequently led to the ‘Lost communication with MCU’ error due to the impact/emergency stop. I flipped the brackets, and now it homes perfectly. Thanks again for your help!"