Z height adjustment no longer working after PID Autotune?
 
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Z height adjustment no longer working after PID Autotune?  

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OldCoder
(@oldcoder)
Trusted Member
Z height adjustment no longer working after PID Autotune?

I updated to firmware 3.0.10, and my printer was still working just fine.

Then I did the PID autotune to improve the bed and nozzle heating system (temperatures are now dead nuts on target). Ever since I did the PID autotune, it appears that the Z bed leveling isn't working correctly.

Now, ABS printing has gone to hell, and printing the V2Calibration test pattern seems to show the head height over the print bed changing while it is printing the test pattern. Some parts of the test pattern are squished into the print bed nicely. Other parts of the test pattern are still round and unsquished! My ABS prints were reliable before this change.

Not sure if my PINDA probe just needs to be lowered again, or if this is some kind of software problem caused by the PID autotune?

I also had the X-axis shift about half way across the heated bed once after doing the PID autotune.

Chris Shaker

Posted : 28/04/2017 10:28 pm
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