I am having some trouble with measuring accurate Diameter size, I have read some threads on this type of thing but the solutions provided pertain to mostly Bridge Type CMMs and I am using a Romer Arm. So I'm interested in any tips you guys may know of to get more accurate results. ... oh and it seems I have more trouble when working on sheet metal parts and I can imagine its due to the thickness of the material. Thanks in Advance
A) calibration of the machine B) calibration to a sphere of the probe C) ensuring good technique and positioning of the probe in the hole D)arc of the circle your trying to measure... depending on your tolerances all of these variables can be a factor plus some I've probably forgotten... I use a romer arm exclusively (small shop) and tend to use the measured romer arm results as an estimate and then check them with gage pin, inner mic, etc.. as a sanity check depending on my tolerances.
A) calibration of the machine B) calibration to a sphere of the probe C) ensuring good technique and positioning of the probe in the hole D)arc of the circle your trying to measure... depending on your tolerances all of these variables can be a factor plus some I've probably forgotten... I use a romer arm exclusively (small shop) and tend to use the measured romer arm results as an estimate and then check them with gage pin, inner mic, etc.. as a sanity check depending on my tolerances.
