Greetings everyone....my name is Kevin, but I go by KJ. I'm hoping someone might be able to assist me with a problem I've been having regarding the ROMER arm I've recently started using. The main issue I have is when I measure a cone on a part and then try to dimension it's profile my results are extremely skewed. Since I work at a company that prevents me from disclosing any particulars on what we manufacture, I am limited in what I can show/link to these forums.
With that said, I feel a lot folk deal with cones on parts so I think I'm okay so far. Anyways, I've worked with PC-DMIS for awhile (learned the DOS version when I first started using a CMM) and I've been to the Level 2 class at Hexagon for training. There are things I still need to learn I'm certain, but for right now I'd settle on being able to figure out why my results always end up inaccurate.
So far, I have tried using an auto-feature to construct the cone I want to profile and then measuring the cone. After I try to dimension the cone (datums are defined), my results are either 0.000 or show up as being several inches out of tolerance. While I have never been afraid of zero, I doubt the parts I'm checking (forged) are that smooth. For example my tolerance FCF might say | Profile symbol | .010 | A | B | the measured value shows 2.3119 or something similia. Way outside of tolerance.
When I run the program offline my results always come in nominal so I don't think I'm programming it incorrectly. Also when ran on a CMM, the results are more believable (if not in tolerance, than at least not inches out of tolerance).
My ultimate question, since I guess i haven't asked one yet, is this - Does the ROMER need special instructions for PC-DMIS to accurately report the profile of a cone?
