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JJarbeau
Posts: 15
Registered: ‎04-15-2013
Message 1 of 4 (280 Views)

Contour Flange on tangential arcs

280 Views, 3 Replies
10-15-2013 09:55 AM

Hello Everyone

 

I have sketched a fan casing which consists of a series of tangential arcs. The sketch is fully defined but when I try to use "Contour Flange" I get the following error:

 

Sheet Metal: Contour Flange Creation failed.
19-3-101-26-2.ipt: Errors occurred during update
The attempted operation did not produce a meaningful result. Try with different inputs.
Try decreasing bend radius
Feature Compute failed.

 

My guess is the end points of the arcs are not defined correctly but I do not know how to fix. I have attached the file.

 

Please help

 

Jeff Jarbeau

Distinguished Mentor
ccarreiras
Posts: 703
Registered: ‎02-04-2010
Message 2 of 4 (271 Views)

Re: Contour Flange on tangential arcs

10-15-2013 10:28 AM in reply to: JJarbeau

Hi!

 

The main question is, this is not a "series of tangential arcs".

The tables which you are taking the values have a lot of approximations. I know that, I have working with some ventilators.

 

The workaround is (2 options):

 

1)  delete some dimentions and give the tangency constrain to the interior arcs. The diameter Dimensions will change so much. I think it's not a problem for the ventilator's work. If so...

 

2) Create little arcs between all interior arcs: split, construction. See the file i attached, you will understand better.

 

1.png

 

Did you find this reply helpful ? If so, use the  Mark Solutions!  Accept as Solution or Give Kudos!Kudos - Thank you!

 

 

Regards.
CarlosC

Autodesk Inventor 2014 Certified Professional
Autodesk Factory Design Suite Ultimate 2015
Windows 7 64Bit
Contributor
JJarbeau
Posts: 15
Registered: ‎04-15-2013
Message 3 of 4 (222 Views)

Re: Contour Flange on tangential arcs

10-16-2013 09:05 AM in reply to: JJarbeau

I kind of thought that was the problem. Struggled for hours to try and fix. 

 

Thank you kindly for the help

 

Jeff

Contributor
JJarbeau
Posts: 15
Registered: ‎04-15-2013
Message 4 of 4 (184 Views)

Re: Contour Flange on tangential arcs

10-22-2013 07:43 AM in reply to: ccarreiras

I have stumbled upon a new wat to make the curves tangent. Creat a small space between the two curves (as per your suggestion) and under the spline drop-down there is a choice of "bridge curve". Select the two curves and dimension.

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