Hello out there in CMM land - I am a bit confused with using my CMM for surface profile. I run a Brown & Sharpe Global Advantage. I have tried to make sense of the manual, but come up a little short. I have looked for other posts too regarding profile.
I have a print with a plane that specifies .010 profile to a datum, with a cylinder in the middle of the plane. The surface to be measured is only .375 wide by .250 long on both sides of the cylinder.
Is there a suggested number of hits to take based on the area to be measured? I tried nine hits on one side of the cylinder in the form of a square, plotted +.010 and -.010 in the respective profile windows, and the CMM gave me a reading of -.0022. The other side, with the same amount of hits and shape, reads -.016. Something is obviously wrong and so is there anyone who could give clarity?
Robbie
I have a print with a plane that specifies .010 profile to a datum, with a cylinder in the middle of the plane. The surface to be measured is only .375 wide by .250 long on both sides of the cylinder.
Is there a suggested number of hits to take based on the area to be measured? I tried nine hits on one side of the cylinder in the form of a square, plotted +.010 and -.010 in the respective profile windows, and the CMM gave me a reading of -.0022. The other side, with the same amount of hits and shape, reads -.016. Something is obviously wrong and so is there anyone who could give clarity?
Robbie
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