Good Day To All,
This question is rather straghtforward, although the answer may not be.
Regarding page 175 of Y14.5M -1994 figure 6-17 shows a Profile of A Surface of Revolution...call it a nozzle. It appears to be pretty clear except the specified Circular Runout Control, shouldn't this be a Total Runout Control?
Doesn't Circular Runout apply independently to each Circular Element of the Toleranced Feature, the drawing note states as much.
And when verifying Circular Runout, several independent readings are made at different places.
So what am I missing, is this an error, a judgemet call or are there several ways of accomplishing the same thing....it would seem that given this part, where would one take several independent readings?
Total Runout would appear to be the better or correct way....I checked and discovered that I posed a similar question awhile back, yet given that this is contained in Y14.5M -1994 it is worth posing a similar question.
Insight from the GD&T professionals would be appreciated.
Regards,
Marty
This question is rather straghtforward, although the answer may not be.
Regarding page 175 of Y14.5M -1994 figure 6-17 shows a Profile of A Surface of Revolution...call it a nozzle. It appears to be pretty clear except the specified Circular Runout Control, shouldn't this be a Total Runout Control?
Doesn't Circular Runout apply independently to each Circular Element of the Toleranced Feature, the drawing note states as much.
And when verifying Circular Runout, several independent readings are made at different places.
So what am I missing, is this an error, a judgemet call or are there several ways of accomplishing the same thing....it would seem that given this part, where would one take several independent readings?
Total Runout would appear to be the better or correct way....I checked and discovered that I posed a similar question awhile back, yet given that this is contained in Y14.5M -1994 it is worth posing a similar question.
Insight from the GD&T professionals would be appreciated.
Regards,
Marty