Hello everyone,

I'm wondering if anyone has come up with a "gauge evaluation sheet/form"? I'm looking for something I can use to say that I have evaluated the risks of using a gauge with a 29% GR&R (for example) and my reasons for not replacing or improving the system are: (no suitable alternative; too expensive; job is temporary; etc.)

Thanks in advance,
gaugefixer

You're wanting a gage R&R for a gage independent of what is being measured?

Hi Marc,

To awnser your question, No.
Here's a few situations:

#1) I have a gauge that gives me a 29% GR&R and I have no choice but to use it because a replacement would be prohibitively expensive or maybe this is the best we have found for the feature.

#2) I find a gauge that is out of tolerance on the shop floor and now I have to evaluate the impact this may have had on production parts.

I was looking for a form that would allow me to record my reasons for using thie gauge in #1 and recording the impact in #2.

I'll probably make up a template for the above.
Thanks,
Rog

Are you using gage tracking software? I'd just look for a 'Comments' field or do a brief writeup and attach it to the calibration certificate. I've done both and gotten appropriate customer signoffs in automotive scenarios. What I did was a simple writeup with my justification and predicted impact(s).

Scenario #1 is always up front so tolerance stackups can be looked at, an evaluation made, and this is where I get a customer signoff. File in part file.

Sometimes in scenario #2 you may have to go through stock, or, in extreme cases, product at the customer's facility if the potential impact is significant. Again, file in part file (or how ever you handle configuration control).

Hi Marc,

Yes, I am using the comments section in Gagetrak presently. Hadn't thought of saving the C of C in a part file though. Good suggestion!
Thanks,

It just depends upon how you track changes and 'protect' yourself. And companies each have their own methods / systems. When I did contract work I always kept my own 'part file' for every part I worked with if the company didn't have a suitable 'evidence' / configuration system. I prefer to keep 'evidence' of things that happen, especially agreements made, deviations and such.