I'm having an issue with profile of a surface using Xact Dimensioning on a Romer arm If there's not datum called out in FCF the part passes no problem, if there's one Datum called out the part passes no problem but multiple (two datum) and my part starts to fail by huge margins (+- 0.300"). I've tried to correct this issue on multiple, unique parts but have had the same issue with the dimension failing, considerably (the dimensions are very passable, FCF tolerance is .060 for a laser cut part).
I'm wondering if there's something (most likely) that I did in my programming, a rookie mistake, or something that I'm missing. I align, define datums and take points using a CAD model.
Is it possible I'm having issues with the vectors being controlled by the second Datum?
I will happily post code, pictures, etc. if that will help.
Thanks for the help. We used vector points and have had some success. Finally!
We think we are having some probe comp issues that are contributing to the failure.
How sensitive is the arm when taking vector points, what degree from perpendicular or parallel is acceptable?
Thanks for the help. We used vector points and have had some success. Finally!
We think we are having some probe comp issues that are contributing to the failure.
How sensitive is the arm when taking vector points, what degree from perpendicular or parallel is acceptable?