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Removing .(M) from Piweb report


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I completely agree Richard, but I would have to educate myself first. As best I remember, the .(M) has something to do with SPC, or trending how much MMC/LMC is used over the entire manufacturing lot, or something like that. I don't honestly remember. Someday, when I'm "All caught up.", I'd REALLY like to know, but today isn't that day. I'm really only asking because I've started converting all our programs to PiWeb printouts, and just the report itself looking different will cause some nervousness and questions.

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I've dealt with this first hand with employees, ISO Auditors and customers.
How can a part be accepted and the report has an out of tolerance condition on a "Modifier" or the "Coordinates" of the Profile and or True Position?

Its ridiculous that I have to explain this to anyone at all, neither of the above should have tolerances. Masking the tolerances still doesn't prevent a FALSE OOT condition on a report.
The modifier is controlled by its feature and tolerance.
The coordinates are BASIC's.

I do not have time to educate every person that reads a report, reports that never had this type of information before. The time involved has greatly out weighed any possible gain of education, in particular when you have a exceptionally large group of customers, repeat and new. With current studies and cost over runs due to this we could have bought nearly two new CMM's.
Zeiss touts helping your bottom line, the fact is, this is not helping our bottom line at all.
I think there are some huge misconceptions as to what the .(M) value is. It is not your bonus tolerance. It is a percentage value of your tolerance usage. You cannot do Capability Analysis (Cpk, Ppk) on a feature that has a material modifier without converting it to a percentage of tolerance usage. If the .(M) shows out of tolerance, than your feature is out of tolerance. In addition, you cannot have coordinates for Profiles/Positions that show out of tolerance, but the feature show in specification.

I understand the frustration, I worked in a manufacturing facility for nearly 13 years, and I have had operators complain to me because the report went from one page to two pages because I added a characteristic for reference only (had no tolerance).

It's the horse and the rider problem.

If you go to Resources - Characteristics Settings Editor - Report - Transfer tolerance from the 'additional printout' option to PiWeb, you can turn off the tolerance function on the additional printout options.

For the .(M) edit your StandardProtocol doing the following:

- Open your StandardProtocol for editing
- Click on Page structure on the left hand side
- Expand Main area
- Select Protocol
- With Protocol selected click on Data provider on the left hand side
- In the Name area at the top, enter {^((?!\.\(M\)).)*$}
- Click the blue arrow to the right
- Click on Only transfer name filter

That should remove it for you.
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