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My measure tool will not infer axis of my parts. I don't know if this is a setting issue, user issue or a lack of functionality of the program. With assemblies of more than 150 parts others have worked on in conversions from one CAD system to another. I don't want to have to edit every part I have to add an axis datum in order to measure or constrain. Creo is great at finding surfaces of diameters and radii on parts but I don't want that information for either measuring or constraining.
How do I get this program to infer axis?
Solved! Go to Solution.
I believe you are not getting true diameters/radius conversions. To verify, go to the ANALYSIS tab, MEASUR drop down arrow, and select DIAMETER and attempt to select the surface you assume is a diameter/radius. CREO will not select anything except "radial" type geometry (edges/curves/surfaces). If nothing can be selected then you are not getting a good conversion.
CREO will assume centers on any 2 cylindrical surfaces (dumb solid or real features) as long as they are true diameters/radii. I verified on a step file I imported.
I suspect the conversion is your enemy.
Hi,
please attach a picture showing what do you want to measure .
MH
I figured out with measuring that I can choose in the analysis window to choose use as axis or use as center.
With contraints I have an iges and a part. I have to go into the iges and create an axis datum because the constraints function keps wanting to do tangency when I want coincident axis or surfaces. It wont recognize the iges file surface.
I can't give you pictures due to security reasons. I don't think I would have these issues if we were not dealing with converting between programs. Our conversion software creates issues, but I have no control over that.
Anyway I had another issue where I wanted to use angle offset and coincidence. A part rotating on a shaft. When I used coincident on the shaft and part using surfaces it would lock it so it wouldn't spin and the angle offset wouldn't work. I had to create an axis on the shaft (again a dumb solid) in order for the part to have spin. Then I used angle offset to get the right positioning. If the program would infer a cylinder axis on a the dumb solid I wouldn't need to create a axis datum. But it looks like I'm out of luck there.
I believe you are not getting true diameters/radius conversions. To verify, go to the ANALYSIS tab, MEASUR drop down arrow, and select DIAMETER and attempt to select the surface you assume is a diameter/radius. CREO will not select anything except "radial" type geometry (edges/curves/surfaces). If nothing can be selected then you are not getting a good conversion.
CREO will assume centers on any 2 cylindrical surfaces (dumb solid or real features) as long as they are true diameters/radii. I verified on a step file I imported.
I suspect the conversion is your enemy.