[Moltke]

I’ve often wondered why many papers do not print their gage r&r results for the equipment they are using in their experiments.

It's reflected in the use of error bars. A measurement shown without an error bar may be discarded as untrustworthy and shouldn't have been published in the first place, unless we're talking popular press.

[reed13k]

Yeah- my engineers try that with me as well sometimes.

Then I run the GRR and in analyzing the results find out that with and without the parts in the tester it will still run above and below spec...so how can you use it to determine if the part is good or not if the variation exceeds the limits?

My point being that if the measurement equipment is less accurate/precise than the size of the thing being measured - the error bar on the thing being measured doesn’t account for everything or assumes that all the variation is in the thing being measured, so all the relationships are screwed up.