I can see the wire break in the cable chain :'(
this post was submitted on 04 Aug 2024
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+1. No idea what's supposed to lead to this conclusion. I'd say that's a bad PID tune.
The drops especially are way too steep for this to be a PID tune. There's too much thermal mass to loose that kind of temperature basically instantly.
Lots of wandering around? PID tune seems like a good starting point, especially if something on the printer changed. Defying the laws of physics? Something else is going on.
The short timeframe and variations that are way to high even for a mediocrely tuned PID
If you got used to looking at your graph and saw those dropouts, you start looking for a physical problem.
That’s worrying then. He can see the wires broken but it still has enough connectivity to keep chugging.
On the plus side if the thermistor broke enough that it would keep pumping heat into the system then thermal runaway protection should trigger at least.
This is basically spot on. It's not full open, but it's close. This is the first print I've noticed it on. It wasn't a long print, so I figured I would let it go and see what happened. If Klipper loses it for too long it will go into thermal shutdown. Ask me how I know :(