In Reply to Parent Post by MACIEKM
Iím having difficulty convincing my coworkers and my superiors with a following air gauge problem or discrepancy.
Lest assume that I am checking a male taper using a female air gage fixture. My gage point diameter is coming of the face of the cone (see attached sketch). Now letís assume that my end stop on the air gage fixture is worn out. How will this affect the diameter and at the gage point location?
If your part enters the gauge further, you are not measuring the same part of the taper and you would get a larger value.
How much larger depends on the amount of wear on the stop and the taper angle.