I have created a plane (1) and am attempting to create an auto-circle for a hole on that plane which is .098" in diameter. My probe is 3mm. So while yes, I understand the error message (Sizes for a contact feature should be greater than probe diameter.) I should be able to create a 1 point circle on that plane and have done this successfully in the past many many times. Any ideas what might be going on here?
And sorry, running 2017 R2 sp6... that recently updated... wonder if thats what is causing this to not work all the sudden.
since the hole is .098" it really doesn't matter what size of probe I use since all of them are too big. (3 mm is approximately 0.11811") When you specify a plane and then place an auto-circle on that plane you have (in the past) been able to take a 1 point circle. PC-DMIS then calculates the size of the circle by how far the probe goes past the plane. However things like burrs or small imperfections create issues with getting an accurate size using a 1 point circle. Which all of that is irrelevant. What is relevant is the positioning of those holes when drawings specify GD&T. Thus my attempt to do a 1 point circle.
So not having seen pcdims do this before let me see if i understand what you're doing.
The probe dia is bigger than the hole dia so as the probe comes down on the centerline of the hole the probe is in effect acting like a chamfer gage would, using the vertical distance to equate to a dia?
How do you get pcdmis to do a 1 point circle?
that is correct. A) you have to use a model... don't know if it can be done otherwise. B) obviously align your model to your part through however you like to do that. C) identify the plane the hole is on. D) select auto-circle. At the bottom of the properties window is a bunch of options... forgive the lack of correct terms please. click on the icon that looks like cross hairs (contact path properties)... where it says "Hits" manually input 1 vs. 3 or more. D) click the icon just to right of that one (contact sample hits properties)... ensure that sample feature is selected and the appropriate plane is chosen in the drop down list.
yes, i realize that the hole diameter in this example is .88"... i just grabbed what I happened to be working on in the moment. the principal is the same.
Yes, for the romer... the steel probe is 15mm. And no, its not a menu thing. I can get all the parameters set and hit go... have been doing this for years... and suddenly can't thus thinking the update may have "fixed" this issue.
As far as I know there are no options for auto-features from the quick start menu. unless we're talking about different menu's.