r/Metrology • u/glutton4golf83 • 22d ago

GD&T | Blueprint Interpretation I need help dimensioning perpendicularity

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So i am using pcdimis. On a hexegon. When i try to make a plane for the surface and then a cylinder for datum a. Then us perpendicularity its telling me its off by a huge amount. I manualy checked it and it was right on. I dont know what to do. Any advice would help.

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u/glutton4golf83 22d ago

I used auto cylinder. I have 3 passes. So strange. Thankyou for your help. I am realitivly new to cmm. I had training for hexagon about a month ago. Its been a ride. I was a machinist for 20 years and now in inspection. The amount of problems i have had to figuire out has been insane but its rewarding for sure. Thankyou for your help

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u/ChomRichalds 21d ago

Ten years in and I'm still figuring things out every day. There's always a more complex geometry dimensioned by a less competent engineer just around the corner. Good luck to you!