Get current PID values?
Is there any way to get the current PID values for a select mini v2? As part of another unsuccessful attempt at printing PETG, I did a PID autotune, after which, my hotend has started fluctuating in a +/- 5C range around the target temperature, in a very consistent pattern. It's continued doing this through multiple autotunes since, suggesting to me that it's either storing the values incorrectly or failing to save the updated values, but I'd like to be able to verify that.
Posted Aug 31, 2020, 7:11 AM UTC
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I think they get reported as the output of an M503.
I don't have my printer up at the moment or I'd check, but I'm pretty sure that's the right Gcode. It should print all the saved settings including the PID settings.
Yep, that did it, thanks. And if you're curious, it looks like it was storing an insane value. Or at least one which was a couple of orders of magnitude off from what the factory value is, on P and D. :/
When the value is way off like you say it was it is often caused by updating the motion controller firmware and not resetting the settings to the firmware's defaults. M502 followed by M500.