We are running a part with a 3" cylinder. The cylinder has a .0002 cylindricity call out. For 10 years we have been using a air Gage to measure this feature, we zero the Gage & spin it throughout the cylinder & the total reading is what we use as our result. Anyway, I was asked to start measuring this on our CMM, I get the cylindricity reading at around .001 every time, I measured a master ring the nominal size of this cylinder & also get the cylindricity around .001. Can I hear everyone's input on measuring cylindricity please.
1.) Which way is more accurate, CMM or air gage (I have tried multiple sized probes & stylus lengths.
2.) Is cylindricity of a cylinder the same as roundness of a circle??
Tell us more about your CMMs Model and probing system. It maybe the limitations of your machine.
Cylindricity is the form and straightness of the entire cylinder, in my opinion I don't think the air gage solution is valid.
Tell us more about your CMMs Model and probing system. It maybe the limitations of your machine.
Cylindricity is the form and straightness of the entire cylinder, in my opinion I don't think the air gage solution is valid.