Inventor General Discussion

Inventor General Discussion

Reply
Active Contributor
ljapsey
Posts: 28
Registered: ‎08-15-2011
Message 1 of 9 (274 Views)

Shrinkwrap/Derive Issue with Positional Reps

274 Views, 8 Replies
08-26-2013 01:38 PM

Haven't posted here in awhile, but still review the site infrequently to gain knowledge and offer help whenever possible.

I have an issue with Shrinkwrap/Derive when using a Positional Rep.

I have put together a very basic example to show the problem.

Open the derived part and try to change it to the "work" positional rep.

Everything appears to work fine in the "master" rep.

I have this problem in a few of my assemblies and was able to track it down to the positional rep usage in the derived part.

I am hoping that there is someone that can lend some advice on how to get it to work correctly.

 

Thanks,

 

Larry

Inventor 2013, SP2

Dell Precision M6600

Windows 7 Professional - 64Bit

32 GB Ram

Nvidia Quadro 3000M

 

Thanks,
Larry
Inventor 2015 - Update 2/Vault Professional 2015
Dell Precision M6600
Windows 7 Professional - 64Bit
32 GB Ram
Nvidia Quadro 3000M
*Expert Elite*
JDMather
Posts: 26,624
Registered: ‎04-20-2006
Message 2 of 9 (242 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

08-28-2013 08:40 AM in reply to: ljapsey

Unconstrained sketches and unusual use of Move Face.

I didn't look any further.  Never got to the stated problem.

 

Perfect parts with no clearance for motion or allowance of manufacturing tolerances.

 

http://home.pct.edu/~jmather/skillsusa%20university.pdf

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Active Contributor
ljapsey
Posts: 28
Registered: ‎08-15-2011
Message 3 of 9 (234 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

08-28-2013 09:54 AM in reply to: JDMather

Oh Crap!

 

These were parts d/l from the web by another user.

 

I thought they were cleaned up better than that.

 

I'll go back through then a bit and see if the problem goes away.

 

Thanks, Larry

Thanks,
Larry
Inventor 2015 - Update 2/Vault Professional 2015
Dell Precision M6600
Windows 7 Professional - 64Bit
32 GB Ram
Nvidia Quadro 3000M
*Expert Elite*
JDMather
Posts: 26,624
Registered: ‎04-20-2006
Message 4 of 9 (227 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

08-28-2013 10:11 AM in reply to: ljapsey

Just make a (very) simple assembly to test - I don't think any of the problems I pointed out should have a bearing on your problem statement.  The only reason I pointed them out is

1. you specifically asked me to look at this thread that I was intentionally not responding to

2. because the problems I pointed out indicated to me a lack of basic training that I didn't have time to get to the heart of the problem. 

 

Notice that others didn't respond either.

Often an indication that

3. the true problem needs more information to be understood

 

Make up a very simple example that exhibits the same behavior.

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Active Contributor
ljapsey
Posts: 28
Registered: ‎08-15-2011
Message 5 of 9 (223 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

08-28-2013 10:15 AM in reply to: JDMather

JD,

 

I agree with everything you said.

 

This was the simplest/easiest one that was giving me problems.

 

I will clean it up and see if it makes a difference and report back.

 

Thank you for your time.

 

Larry

Thanks,
Larry
Inventor 2015 - Update 2/Vault Professional 2015
Dell Precision M6600
Windows 7 Professional - 64Bit
32 GB Ram
Nvidia Quadro 3000M
Active Contributor
ljapsey
Posts: 28
Registered: ‎08-15-2011
Message 6 of 9 (215 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

08-28-2013 11:56 AM in reply to: ljapsey

JD,

 

Ok, I went back and fixed the rail and slide and as thought, it made no difference.

 

I did up a 'quick' block assembly and the problem still exists.

 

Open the shrinkwrap and try to change it to the 'work' positional rep.

 

There is definately an issue for Autodesk to look at.

 

Thanks for your time.

 

Larry

Thanks,
Larry
Inventor 2015 - Update 2/Vault Professional 2015
Dell Precision M6600
Windows 7 Professional - 64Bit
32 GB Ram
Nvidia Quadro 3000M
Active Contributor
ljapsey
Posts: 28
Registered: ‎08-15-2011
Message 7 of 9 (180 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

09-19-2013 10:40 AM in reply to: ljapsey

*bump*

 

Noticing that it does this with any shrinkwrap made from a positional rep in an assembly.

 

Thanks, Larry

Thanks,
Larry
Inventor 2015 - Update 2/Vault Professional 2015
Dell Precision M6600
Windows 7 Professional - 64Bit
32 GB Ram
Nvidia Quadro 3000M
Active Contributor
ljapsey
Posts: 28
Registered: ‎08-15-2011
Message 8 of 9 (160 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

09-25-2013 08:11 AM in reply to: ljapsey

*bump*

 

Seeing this frequently as trying to build assembly models.

 

Larry

Thanks,
Larry
Inventor 2015 - Update 2/Vault Professional 2015
Dell Precision M6600
Windows 7 Professional - 64Bit
32 GB Ram
Nvidia Quadro 3000M
Active Contributor
ljapsey
Posts: 28
Registered: ‎08-15-2011
Message 9 of 9 (124 Views)

Re: Shrinkwrap/Derive Issue with Positional Reps

11-26-2013 05:42 AM in reply to: ljapsey

The only one that works consistantly is to use shrinkwrap on the master rep.

 

Makes all of the added functionality quite worthless.

 

Larry

Thanks,
Larry
Inventor 2015 - Update 2/Vault Professional 2015
Dell Precision M6600
Windows 7 Professional - 64Bit
32 GB Ram
Nvidia Quadro 3000M
Announcements
Are you familiar with the Autodesk Expert Elites? The Expert Elite program is made up of customers that help other customers by sharing knowledge and exemplifying an engaging style of collaboration. To learn more, please visit our Expert Elite website.
Need installation help?

Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.