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PID autotune is fluctuating wildly #75

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rndsumgen opened this issue Feb 3, 2022 · 0 comments
Open

PID autotune is fluctuating wildly #75

rndsumgen opened this issue Feb 3, 2022 · 0 comments

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@rndsumgen
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My PID looks like: https://imgur.com/ls1jUs7

It's going over by nearly 30 degrees on warm up with 200 degree target
Note: second tuning attempt the first was at 180 and it failed with roughly the same curves.

Hardware:
BIQU H2
BigtreeTech GTR V1
Also a BIQU Hermit Crab (shouldn't be a problem but it's between the two so I'm noting it)

Configuration.H : https://pastebin.com/H4MLn7fm
Configuration_ADV.h : https://pastebin.com/gB1syCZY

The only time I've seen a curve like this was with a bad cap, I don't see reports of this problem with this board am I missing something obvious?

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