Minitab or Gage R & R Specialist help wanted

Jeenan

Involved In Discussions
#1
Hi, again....a little problem.....:confused:

When I perform an analysis on a Gauge R & R, I always try to enter a tolerance (so I see the % of R & R and know wright away if I'm below the magic 25%) :rolleyes:
That is easy, when I got a +/- tolerance
Ex: 100 (any units) +/- 10.....So I enter tolerance= 20 (total tolerance)

BUT.....How do I enter the tolerance when I only got a maximum....
Meaning: the tolerance for a given test is MAX 100 (so anything below 100 is acceptable)...:confused:

Is there a special way to 'calculate' or explain that type of tolerance in Minitab.....

Thanks for helping.....:thanx:

Jeenan
 

bobdoering

Stop X-bar/R Madness!!
Trusted
#2
If 0 is a physical low limit, you can use it for your lower spec (different issue than capability calculations.) Now, if you had a minimum, it gets dicey. But the real % is %TV, not % tolerance, anyway. So it is not mandatory to calculate % tolerance - but you can always calculate %TV.
 

Jeenan

Involved In Discussions
#3
If 0 is a physical low limit, you can use it for your lower spec (different issue than capability calculations.) Now, if you had a minimum, it gets dicey. But the real % is %TV, not % tolerance, anyway. So it is not mandatory to calculate % tolerance - but you can always calculate %TV.
Thanks Bobdoering,
but you said %TV, I don't see it in Minitab, I 'guess' you mean Study Var (6*SV)....If not, wich number is the TV

Thanks:thanx:
 

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