Inventor General Discussion

## Inventor General Discussion

Contributor
Posts: 13
Registered: ‎10-05-2010
Message 1 of 5 (172 Views)

# Another flattening riddle

172 Views, 4 Replies
08-06-2012 09:21 AM

I am trying to model a hollow curved disk as we would build it; faces cut form 1/8" material and roll formed and a return of.0625 thickness spanning the two.  The three parts were devived from disk3.ipt.   The faces both flatten.  The return thinks it flattened but did not.  Each of the 3 parts has its sheet metal rules thicknes set to "thickness".  I have learned a bit searching for someone's simalar problem but not solved my own.  I am pretty sure that this will flatten without deformation.

Any insight would be appreciated.

Thanks,

Zak

*Expert Elite*
Posts: 2,471
Registered: ‎09-13-2011
Message 2 of 5 (169 Views)

# Re: Another flattening riddle

08-06-2012 09:27 AM in reply to: zakaronius

Inventor can't unfold that.

Mike (not Matt) Rattray

Contributor
Posts: 13
Registered: ‎10-05-2010
Message 3 of 5 (163 Views)

# Re: Another flattening riddle

08-06-2012 09:46 AM in reply to: zakaronius

Thanks for the quick response.

It seems that Inventor 2013 can not unfold this yet I find that very hard to believe.

Considering Dr Mather's comment regarding part2:

http://forums.autodesk.com/t5/Autodesk-Inventor/How-can-I-flatten-these/m-p/3465526/highlight/true#M...

..MIGHT be able to be flattenned;  clearly part2 has compound curves.  I would have thought it impossible to flatten without deformation.  My return seems to me as it would lay flat as anything.  I guess I'll try something different to prove or disprove that notion.

Thanks.

Contributor
Posts: 13
Registered: ‎10-05-2010
Message 4 of 5 (147 Views)

# Re: Another flattening riddle

08-06-2012 10:37 AM in reply to: zakaronius

Yup.  You are right, Mike.  Thanks

Contributor
Posts: 13
Registered: ‎10-05-2010
Message 5 of 5 (67 Views)

# Re: Another flattening riddle

08-08-2012 05:56 AM in reply to: zakaronius

Still trying to solve what, seems to me, ought to be a simple problem.

Attached is a new version of the return that would not flatten.  A sweep rather than a patch between two surfaces.

No deleted faces.  Sheet metal environment  Thickness matches SM rule...

I exported this to Rhino where it does flatten yet it still will not in Inv2013.

Any insight?

### You are not logged in.

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.

### Maintenance Subscription Resources

Upgrading to a 2015 product? Make sure to check these out 1st!

### Inventor Exchange Apps

Created by the community for the community, Autodesk Exchange Apps for Autodesk Inventor helps you achieve greater speed, accuracy, and automation from concept to manufacturing.