NX Journal Hole Depth & Thru Holes

[cmick31]

Evening,

I have a Journal that applies attributes to all cylindrical faces in a body according to their hole sizes(reads radius).

Using AskBoundingBoxExact I'm able to grab the depth of holes. However, one thing I can't seem to figure out is how I would determine if the cylindrical face runs all the way through its associated body.

Basically what I'm trying to do is say in simple terms; if face radius 3.4 is 16 deep, make attribute "M8 16 Deep", or if face radius 3.4 runs through entire solid body, make attribute "M8".

One thing I could run into(regarding example above) is if the body is "16 thick" I would also need to find a way to determine its through the body and not apply the depth.

Any thoughts or answers on how I can achieve this?

Much appreciated for any guidance.

 

[cowski]

Are you working with a fully featured model or a dumb body?

For a featured model, you can get the faces created by the hole command.
For a dumb body, assuming you have a reference to the cylindrical hole face, one approach would be to use .AskAdjacFaces to find the adjacent faces to the cylindrical face and inspect them. If you find a conical or planar face with one edge that is the same radius as your cylindrical face, you found the bottom of the hole. I might have some code that does something similar.

www.nxjournaling.com

 

[cmick31]

Thanks for the quick reply Cowski I very much appreciate it!

I am using dumb body. AskAdjacFaces could very well do the trick, I'm going to dig in to it.. To my understanding I could write something along the lines of:

If found adjacent planar/conical face then

​

grab depth of hole & apply to attribute.
Else if no face found then

​

skip depth found & apply attribute.

If you wouldn't mind, could you provide the code you were talking about? I think it'd be beneficial to me rather I use it or not. I've been self teaching for a couple months and a lot of your work on here has been the material I study.

 

[cowski]

The journal code can be found here.
Open the desired part in NX and run the journal code. It will prompt you to select a face (selection will be limited to an internal cylindrical face); it will then report the number of related faces and highlight them all. I added the highlighting for a quick visual check; unfortunately, the highlighting stays longer than needed. You will probably have to use part cleanup -> remove extraneous highlighting to get rid of it. I don't recommend highlighting faces in this way for your final code.

www.nxjournaling.com

 

[cmick31]

Thanks Cowski, appreciate the input!

 

[cmick31]

Cowski,

Perhaps you could give some of your expertise..

My program seems to work pretty well except on Counterbores.

The way I have it ran is, select cylindrical face - Ask adjacent faces - if both adjacent faces are bounded plane then don't attribute as counterbore

If one of the adjacent faces are cylindrical then attribute as counterbore.. However when I tested the adjacent faces output the counterbore face seems to read out as value of 22 (Bounded Plane value). It surprised me because I thought it'd read out as cylindrical, but thinking about it the bottom of a counterbore is a flat face..

Do you have any thought on how I could program it to grab/find the counterbore cylindrical face to determine attribute read out? I can provide my code if it'd help you.

Thanks

 

[cowski]

I'd suggest looking through the faces returned, if there are 2 cylindrical faces, the one with the larger radius is the counterbore face. I think this will cover the majority of cases.

www.nxjournaling.com

 

[kukelyk]

I would create a loong coaxial cylinder with the same radius, and check interference between bodies.

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kukelyk