CAD/CAM and 3d dimensioning

[Mercdog]

Hello,
I'm interested in the CAD/CAM ability of UG, and have a few questions:
Can you tolerance the 3D models?
Can you apply a finish coating to models, that will account for plating, anodizing, painting, etc?
Does it do tolerance analysis?
Does the CAM read tolerances form the CAD models?

Thanks,
Terry

 

[looslib]

As defined in ASME Y14.34, Yes.
Do you mean in thickness? You could but why would you actually want to model a .00007 inch thick shell? you would never really be able to see it as the plotted lines of a drawing are thicker that that.
Stackup analysis, like CeTol does in Pro/E. not that I am aware of, but I haven't checked the website for new modules in a few years.
Not that I know of, but the default CAM tolerance is set to .001 inches (intol/outtol) which should be within the design tolerance. It cam be tightened by a change to the system preferences.


"Wildfires are dangerous, hard to control, and economically catastrophic."
"Fixed in the next release" should replace "Product First" as the PTC slogan.

Ben Loosli
CAD/CAM System Analyst
Ingersoll-Rand

 

[Mercdog]

I'm looking to get the CAD and CAM to work together completly; correct nominals and tolerances. A type II
anodize can add .002".

Are many using the Y14.41 3D dimensioning specs? Have you gone away with 2D drawings completly?

Thanks,
Tery

 

[ewh]

We have a customer (a large aerospace manufacturer) who sends us their part files in a form similar to Y14.41. 2D drawings are totally absent. Therefore, we have had to familiarize ourselves with the standard. For my part, I like having all of the information in the model file, as long as it is well organized, but I don't see our company, or many others, complying with the standard until the modeling software fully supports it.

 

[Mercdog]

Ewh,
Are you the mancufacturer of these parts? Is there any more details you can provide?
We manufacture all parts in house and are looking at the possibility of eliminating 2d draft.

Thanks for the info,
Terry

 

[ewh]

Merdog,
Yes, we manufacture these parts, to the customers specifications. The parts are not entirely paperless, though. Several specs come with them on how to interpret the model files.
To be able to go paperless, all departments would have to be able to view and interrogate the model files, from design to purchasing, manufacturing and quality control. All record keeping would have to be electronic, as would work instructions, etc. This would entail quite an investment in hardware, software and training.
While it seems a worthwhile goal, you must remember that when CAD was first used on a widespread basis, instead of creating an environment where less paper was used, the opposite occured.
If you only want to eliminate 2D drawings, then with proper organization, investment, and company buy-in, you should be able accomplish it. It helps that your parts are made in house. Having other vendors make them will increase the headaches involved.
I wish I could provide you with more details, but I don't have enough experience in this area to be of much help. I don't see our company going that route for quite some time, if at all.
Maybe someone else here has some advice, or you could try posting questions in the Engineering Configuration Management forum. Good luck and keep us posted!

 

[wmalan]

Can you tolerance the 3D models?
Yes.

Can you apply a finish coating to models, that will account for plating, anodizing, painting, etc?
You can annotate that the feature has a coating.

Does it do tolerance analysis?
Not sure. I'm an nc programmer.

Does the CAM read tolerances form the CAD models?
No. But one can see those annotations as they work so as to account for it during programming. The cam side is fairly seamless to the modeling side.

--
Bill