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Readings between different units

Readings between different units

(OP)
What would be acceptable difference in readings done by different machines and operators.

RE: Readings between different units

(OP)
I contacted Taylor Hobson because that's who we bought the unit I'm using from and they said 2% if same operator using both units and everything else is exactly the same and 5% if operators are using the same units, spec and trace.
So I wondering how much it would be for different units, I know our other labs they don't even make it anymore.

RE: Readings between different units

Running a search for Gage R&R might be useful.

For example, here is a handy introduction to the subject (complete with a link to a spreadsheet)

http://www.dmaictools.com/dmaic-measure/grr

RE: Readings between different units

(OP)
Thanks for the feed back.

RE: Readings between different units

You haven't specified what unit or test, Cosmoe615.

RE: Readings between different units

(OP)
My lab is using a Taylor Hoboson S-116 not sure what the supplier of our parts is using.

RE: Readings between different units

So it's a roughness testing unit?

RE: Readings between different units

(OP)
Yes, the S-116 a smaller type unit for measuring surface finishes about the size LxW of a kindle

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