2009/10/1 Jon Elson <[email protected]>:

> Somebody posted a pastebin that showed large jumps in "some" variable.
> I was never real clear
> what that column in the file was showing,


If you mean http://www.pastebin.ca/1583502 then that was me.
The columns (which are messed up, but tab-delimited) show timestamp
(once every servo thread),the measured spindle speed
(encoder.0.velocity * 60),  the encoder channels (Z then A) , the
output of encoder.0.position-interpolated and then a column calculated
in Excel which is the difference in position-interpolated
sample-by-sample.
I am not sure what it all means.

Something I intend looking at tonight is what encoder.0.velocity does
on an index reset (which is missing from that data)

As an extra datapoint  have a zoomed-in Halscope of my encoder
positions at http://imagebin.ca/view/ud8Tect.html which I think shows
that my printed-paper encoder isn't as obviously hopeless as has been
assumed (including by me)

-- 
atp

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