Inventor General Discussion

Inventor General Discussion

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Valued Contributor
mdwildcat
Posts: 59
Registered: ‎05-27-2009
Message 1 of 17 (617 Views)

Cylinder unfold to creat layout.

617 Views, 16 Replies
05-27-2009 01:04 PM
I want to creat a hollow cylinder. But I need to be able to unfold it to have a layout of the cylinder. So that when this DWG goes to the floor the technicans knows how much he/she will need from the sheet to roll the cylinder.
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Mark_Flayler
Posts: 1,469
Registered: ‎07-30-2007
Message 2 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-27-2009 01:10 PM in reply to: mdwildcat
Which Version of Inventor?

In 2010, create your hollow cylinder as a sheet metal part, use the Rip command to create the opening, use a Flange with Old Method to lap if desired, hit Flat Pattern, save a copy of the face as a DXF.
Mark Flayler - Senior Application Engineer
IMAGINiT's Manufacturing Solutions Blog:
http://blogs.rand.com/manufacturing/
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mcgyvr
Posts: 6,939
Registered: ‎12-01-2004
Message 3 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-27-2009 01:13 PM in reply to: mdwildcat
You will need to test and enter in a value for the k-factor/bend allowance which is based on which machine you are using to roll and how much it will stretch the material when rolling it.
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Valued Contributor
mdwildcat
Posts: 59
Registered: ‎05-27-2009
Message 4 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-27-2009 01:14 PM in reply to: mdwildcat
we are still using 09 we are having problems getting 10 to work on all the computers.
Active Member
nick.s
Posts: 9
Registered: ‎10-05-2006
Message 5 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-27-2009 08:09 PM in reply to: mdwildcat
Hi,
If you draw your cylinder as a sheetmetal part using contour flange you can layflat this. Sketch would be of circular end and must have a break (can be very small) in it. As stated above you'll want to have appropriate sheetmetal settings applied.
Valued Contributor
mdwildcat
Posts: 59
Registered: ‎05-27-2009
Message 6 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-28-2009 05:17 AM in reply to: mdwildcat
When I do this using the contour flang operations I get this error message:

Sheet Metal: Contour Flange Creation failed.
Part1: Errors occurred during update
Closed loop found in this path. Use Edit Sketch to open the loop.
Non-tangent curves found in path: flat pattern cannot be correctly created. Edit sketch and add constraints to the curves.
Feature Compute failed.
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Mark_Flayler
Posts: 1,469
Registered: ‎07-30-2007
Message 7 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-28-2009 05:19 AM in reply to: mdwildcat
Contour Flanges require an Open profile such as a line or arc or series of these, not a normal close profile you may be accustomed to.
Mark Flayler - Senior Application Engineer
IMAGINiT's Manufacturing Solutions Blog:
http://blogs.rand.com/manufacturing/
*Expert Elite*
JDMather
Posts: 26,879
Registered: ‎04-20-2006
Message 8 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-28-2009 05:26 AM in reply to: mdwildcat
>When I do this

Attach what you have so far.
Please mark this response as "Accept as Solution" if it answers your question.
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Active Member
nick.s
Posts: 9
Registered: ‎10-05-2006
Message 9 of 17 (618 Views)

Re: Cylinder unfold to creat layout.

05-28-2009 01:16 PM in reply to: mdwildcat
Yes, as other post states the sketch would be a single circle with a break not circle with offset and ends closed like normal profile. Contour flange looks for reference edge not profile. Apologies for the jpg - it wasn't very clear. The break would be very small so as to have a negligible effect on the layflat width.
Valued Contributor
johnteng00
Posts: 96
Registered: ‎03-19-2007
Message 10 of 17 (573 Views)

Re: Cylinder unfold to creat layout.

05-28-2009 06:51 PM in reply to: mdwildcat
the addin from solid3dtech is different than the functions inside Inventor. It can handle "not developable" surface or quilt surface.
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