In the picture below, it is a 30mm diameter small cylinder; the highlighted red color means the bore is machined at this operation.
The face has been machined in the previous operation.
should it be runout callout or perpendicularity?
if it's runout check, we use arbor to locate the part on the bore, rotate the part and the dial indicator checks the face
if it's perpendicularity check, we use air gauge, let the part sit on the air spindle , rotate the part, get the perpendicularity results.
The way we check is kind of reverse check, meaning we are grabbing the bore and checking the face.
This bothers me a while as some people prefer runout but other prepfer perpendicularity...
The face has been machined in the previous operation.
should it be runout callout or perpendicularity?
if it's runout check, we use arbor to locate the part on the bore, rotate the part and the dial indicator checks the face
if it's perpendicularity check, we use air gauge, let the part sit on the air spindle , rotate the part, get the perpendicularity results.
The way we check is kind of reverse check, meaning we are grabbing the bore and checking the face.
This bothers me a while as some people prefer runout but other prepfer perpendicularity...