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Single feature won't rebuild
2

Single feature won't rebuild

Single feature won't rebuild

(OP)
I have a rather complicated casting model, in which I've added an extrude feature about 1/3 of the way down the feature list. This feature will not rebuild automatically.

What I mean is I load the part this feature is not part of the model (not suppressed or in error, just missing.) If I use CTRL B then this feature appears.

Opening something that references this model, the feature is missing. Using CTRL B at each model is the only way to get this feature to the final assembly, but of course whenever I re-open the final assembly this feature is misssing until I open all references and rebuild each one manually...

What can I do?

Thanks,
Alex

RE: Single feature won't rebuild

Other than doing a ctrl B what other methods have you used?  Have you looked at the sketch that is used to create the feature to make sure all references are still intact?  How many features are in your model?  have you included cast fillets in your model?  if so where do they resid in the feature tree?

Best Regards,

Heckler
Sr. Mechanical Engineer
SW2005 SP 2.0 & Pro/E 2001
Dell Precision 370
P4 3.6 GHz, 1GB RAM
XP Pro SP2.0
NIVIDA Quadro FX 1400
      o
  _`\(,_
(_)/ (_)

Do you trust your intuition or go with the flow?

RE: Single feature won't rebuild

Is the feature based on an external reference?  What about the sketch -- is it a single closed sketch, or does it have multiple contours?

RE: Single feature won't rebuild

(OP)
I have checked the sketch, it is fully defined without any errors. There are no external references (other than the feature is an extrude to surface.) This is the approximately 20th feature in a tree of about 60 features. this was the last feature added (using roll back, then insert the sketch on pre-existing plane, then extrude to existing surface.)

Editing the sketch, deleting and re-creating the extrude, editing the extrude will cause the feature to temporarily re-appear, but this is not present whenever the model or its parents are loaded.

The model looks like a starfish, there are no sketched fillets extruded, however there are no planar surfaces either, nearly every possible edge is filleted and most surfaces are created from eliptcal/round/semi-round or a complicated combination of these profiles to begin with...we did talk the designers out of having the suctions on the bottom of the arms though...

RE: Single feature won't rebuild

Instead of extruding to surface try:

Up To Body. Select the body to extrude to in the graphics area for Solid/Surface Body . You can use Up To Body when making extrusions in an assembly to extend the sketch up to the selected body. If the sketch that you extrude extends outside of the selected face or surface body, Up To Body can do some automatic extension of one analytic face to terminate the extrusion. Up To Body is also useful with mold parts, if the body you extrude to has an uneven surface.

I have an injection molded part using this up to body verses to surface.

Best Regards,

Heckler
Sr. Mechanical Engineer
SW2005 SP 2.0 & Pro/E 2001
Dell Precision 370
P4 3.6 GHz, 1GB RAM
XP Pro SP2.0
NIVIDA Quadro FX 1400
      o
  _`\(,_
(_)/ (_)

Do you trust your intuition or go with the flow?

RE: Single feature won't rebuild

Try [Ctrl]+Q. I don't know the specifics except that it does a more complete rebuild than hitting [Ctrl]+B, so I almost never use [Ctrl]+B. [Ctrl]+B is the same rebuid function done by the Traffic light thing too...so I usually don't use it either.

Ken

RE: Single feature won't rebuild

(OP)
Star for Ken! After the CRTL-Q thing it finally saved with the feature present. I'll have to read up on that different rebuild...

RE: Single feature won't rebuild

What the Ctrl-Q is a deeper rebuild, which means it rebuilds from the top to the bottom, every sketch and feature.

A normal rebuild, only rebuilds the last feature in the tree.

I don't think there is any info on the Ctrl-Q in the help. This is something I was told in the beginning myself, and have always remembered since.

Best Regards,

Scott Baugh, CSWP
3DVision Technologies

www.3dvisiontech.com
www.scottjbaugh.com
FAQ731-376
FAQ559-716 - SW Fora Users

RE: Single feature won't rebuild

Star for Scott too!
I was told that Ctrl-B performs a "local" rebuild, i.e. it rebuilds the last modified feature + "near-surrounding" entities. In this case it seems appropriate because the feature is being edited, but in fact it's the "in-depth" topological relations that needed to be recalculated.Ctrl-Q instead performs the complete rebuild, i.e. it recalculates both the full geometry and the full topology.

RE: Single feature won't rebuild

That article lists not to use it often.. I disagree. I use it throughout the building process, because what do you think would happen if there was a problem in the upper poriton of a model and you didn't find it until the end? I get alot of calls like this and my suggestion is to use the ctrl-q throughout the building of the model. Just so this doesn't creep up on you and take over. Finding a problem in a model will take longer then it will to do a Ctrl-Q on the model after a few features at a time.

The article did list the "Verification on rebuild" option. I agree with this, don't turn this on, unless you do Tech support as your job function (like me).

Best Regards,

Scott Baugh, CSWP
3DVision Technologies

www.3dvisiontech.com
www.scottjbaugh.com
FAQ731-376
FAQ559-716 - SW Fora Users

RE: Single feature won't rebuild

That article is from 1999. Computer's were a lot slower then. Probably talking about 400-600mhz max. Now they are pushing 4ghz, rebuild times are nearly 8x faster or 8x shorter depending on how you look at it. A 60sec rebuild now only takes around 8. To me, that's a big difference on how often to hit "control q"

Jason Capriotti
Smith & Nephew, Inc.

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