Axis Flicker Problem

[bizarrecustoms]

So just a little back ground info: I am retrofitting a 1997 Cincinnati Arrow 1000 with an Oak control. I am using all the original motors and drivers (BDS4's, BDS5, PSR4/5). At this point in time I can control all three axis and the spindle. However, I am having issues with the Y axis (as shown in the video) thousands positioning flickering back and forth while stationary. The other two hold steady. Curious if anyone has run into this or have any insight. Report file attached.

Centroid Y Axis Problem.mp4

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[Centroid188]

Looking at your report.
Your Ki is different for Y than X and Z.
Normally Ki would be the same for all 3.
So I would make Ki 0.0005 for all.
Your KP is also half for Y as compare to X and Z.

The other thing to note is you are only bouncing around 2.5 encoder counts. Which is what 0.0001" equals in your case. So you are actually holding position fine.

[bizarrecustoms]

Looking at your report.
Your Ki is different for Y than X and Z.
Normally Ki would be the same for all 3.
So I would make Ki 0.0005 for all.
Your KP is also half for Y as compare to X and Z.

The other thing to note is you are only bouncing around 2.5 encoder counts. Which is what 0.0001" equals in your case. So you are actually holding position fine.

Sorry, I thought I had changed that back before I created the report. Those values were changed trying to see if/how it would affect the problem. But your comment about the counts makes since. I did not think about that. Thanks