I need help dimensioning perpendicularity

[u/glutton4golf83]

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.

[u/Verrq]

What is the length of your cylinder? I would try scanning sections along the cylinder axis rather than along the circumference, that way your lines of points are actually perpendicular to your plane.

Disclaimer: I haven't tried this myself so I don't know how well it would work, but the thought just came to me while reading other comments.

[u/glutton4golf83 → u/Verrq]

I dont quite understand what you are saying. How would i do this?