Bad tool board or bad wiring
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Is there a way to determine if the duet toolboard is bad or is the wiring bad. I get the hotend temperature jumping to 2000 deg for a split second and when this happens I run M122 B121 and this is what is returned.
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@thaug29 said in Bad tool board or bad wiring:
Is there a way to determine if the duet toolboard is bad or is the wiring bad.
Are you able to check continuity of the cable while it's being moved around? Do you have good strain relief? Check the crimps. Does there appear to be a pattern to the behaviour? Is it only during movement that it disconnects?
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@Phaedrux This is very odd, it will run for hours without any problem and then the print will pause and the hotend temp will jump up and down from set point to 2000 deg. It's on a Voron 2.4 and the wire runs thru a lot of cable chain. It mat be easier to replace the entire wire, I just don't know if it's wire or the board. I can try to check continuity and crimps.
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I check the wiring and it seems to be OK. Attached are some other responses that I get from M122 B121 when entered when the Hotend temp hits 2000 deg. Is there some M code that can be entered to give more information on what is going on?
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The hotend temp jumping to 2000 probably means it's lost the canbus connection, also explains why the M122 command fails, because it can't reach the board.
When the toolboard is in this state, what LEDs do you see on the board?
What kind of can cabling are you using?
It may be worth changing out the cable and crimps. If the issue still occurs, we've narrowed it down to the board at least.
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@Phaedrux Sense I am color blind I can't tell what color the LED is and the issue happens so fast the flashing LED does not change as far as I can tell. I am using twisted wire with factory crimps on both ends which is soldered to the twisted wire. I have run a new wire and ordered a new ver1.3 board so one way or the other the problem will be fixed.
