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2grumpy
Posts: 174
Registered: ‎11-26-2007
Message 1 of 21 (422 Views)

What the..? with surfaces in Inventor

422 Views, 20 Replies
11-02-2011 04:00 PM

i am trying to find answers in Inv help and can not so i decided to ask you guys. Attached is an image from 'browser' - why so many the same surfaces - why each boundary patch is shown in 3 or 4 places why one Boundary patch stays represented as it was and the other get 'hold by hand' and another copy(?) or representation shown in browser?

And at last - question to Autodesk developers - why there is no sufficient information on above matters? or why it can not be find in simple way of typing the "Boundary Patch" and search?:smileymad: :smileysurprised:

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JDMather
Posts: 26,186
Registered: ‎04-20-2006
Message 2 of 21 (416 Views)

Re: What the..? with surfaces in Inventor

11-02-2011 04:09 PM in reply to: 2grumpy

The Solid1 in the Solid Bodies folder is created from the Boundary Patches so logic says it has to be listed.
The Boundary Patches are surfaces, so logic says they have to be listed in the Surface Bodies Folder.

The hand means they are shared features.


While Delete Face is certainly a valid techinque in surface modeling - in my experience when I see a feature tree like this - it is almost always a convoluted method to getting the desired geometry.

Given your stated confusion - can you attach the file here for other to perhaps suggest other techniques?

 

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2grumpy
Posts: 174
Registered: ‎11-26-2007
Message 3 of 21 (411 Views)

Re: What the..? with surfaces in Inventor

11-02-2011 04:43 PM in reply to: JDMather

Thanks for your input. I am working on customer file created in different software and trying to change design of the part. Sorry i can not send the file. i need to opposite hand parts and while i have no problem with creating one solid the other using the same technique does not solidify?

Could you please explain why one of the patch got the hand appearing and what it means?

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sbixler
Posts: 1,870
Registered: ‎09-15-2003
Message 4 of 21 (361 Views)

Re: What the..? with surfaces in Inventor

11-03-2011 03:37 AM in reply to: 2grumpy

If you have one hand already modeled properly, then you don't need to model it again for the other hand! Use the Mirror tool, select mirror whole solid, and select the New Solid button.  Now you will have a multibody part with both hands, and you can do additional work on each one separately.  Any time you want to add a new common feature to both, just roll the EOP marker above the mirror feature and add it there.  Then, of course, you create individual parts from those solids (Make Components).

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JDMather
Posts: 26,186
Registered: ‎04-20-2006
Message 5 of 21 (351 Views)

Re: What the..? with surfaces in Inventor

11-03-2011 04:01 AM in reply to: 2grumpy

2grumpy wrote:

 

Could you please explain why one of the patch got the hand appearing and what it means?


I thought I already did.  The hand means the geometry shared by two (or more) features.

In addition to suggestion of modeling multi-body mirrored you could also start new part and Derive Component the mirrored part.

 

To bad you can't post the file - I would bet there is a significanlty easier way than whatever you are trying.

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mbenoy
Posts: 77
Registered: ‎12-05-2006
Message 6 of 21 (316 Views)

Re: What the..? with surfaces in Inventor

11-03-2011 06:39 AM in reply to: 2grumpy

You also might want to take a look at the toggle "Auto-consume work features and surface features" under the "Part" tab in the Options.  You might find that you prefer it the other way.

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Scott Safety

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Distinguished Contributor
2grumpy
Posts: 174
Registered: ‎11-26-2007
Message 7 of 21 (278 Views)

Re: What the..? with surfaces in Inventor

11-03-2011 02:56 PM in reply to: JDMather

yes but it is not so clear. i have attached example file to show my issues.

my question are why extending surface 15mm does mean 13.5 mm? why applying different order to stitch i have different result - surf 5 & 6 in part exa5 against 3 & 4 in part exa5a.

also do not understand why to work on surface we have two environments model and construction?

that for start - i still have many more questions. 

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JDMather
Posts: 26,186
Registered: ‎04-20-2006
Message 8 of 21 (275 Views)

Re: What the..? with surfaces in Inventor

11-03-2011 03:26 PM in reply to: 2grumpy

2grumpy wrote:

...also do not understand why to work on surface we have two environments model and construction?


Where are you seeing Construction Environment unless you are using imported data?

 

As I suspected this is going to be a mess - my initial opinion is that unless I am missing something you are going about this all wrong.

 

We'll see if we can work towards the solution. (I could be missing something.)

 

I am going to concentrate first on exa5a.ipt - this might take a while, so bear with me.

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JDMather
Posts: 26,186
Registered: ‎04-20-2006
Message 9 of 21 (272 Views)

Re: What the..? with surfaces in Inventor

11-03-2011 03:29 PM in reply to: JDMather

I don't see the logic to Delete Face 2 or 3.

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2grumpy
Posts: 174
Registered: ‎11-26-2007
Message 10 of 21 (270 Views)

Re: What the..? with surfaces in Inventor

11-03-2011 03:38 PM in reply to: JDMather

Attached file is example only - the real shape in file i am working is much more complicated and it make sense.

You can see in this very simple, basic shape and even it creates issues.

 

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