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Cylinder unfold to creat layout.

16 REPLIES 16
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Message 1 of 17
mdwildcat
1854 Views, 16 Replies

Cylinder unfold to creat layout.

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.
16 REPLIES 16
Message 2 of 17
mflayler2
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.

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Mark Flayler - Engagement Engineer

IMAGINiT Manufacturing Solutions Blog: https://resources.imaginit.com/manufacturing-solutions-blog

Message 3 of 17
mcgyvr
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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Inventor 2023 - Dell Precision 5570

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Message 4 of 17
mdwildcat
in reply to: mdwildcat

we are still using 09 we are having problems getting 10 to work on all the computers.
Message 5 of 17
nick.s
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.
Message 6 of 17
mdwildcat
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.
Message 7 of 17
mflayler2
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.

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Mark Flayler - Engagement Engineer

IMAGINiT Manufacturing Solutions Blog: https://resources.imaginit.com/manufacturing-solutions-blog

Message 8 of 17
JDMather
in reply to: mdwildcat

>When I do this

Attach what you have so far.

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Message 9 of 17
nick.s
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.
Message 10 of 17
johnteng00
in reply to: mdwildcat

the addin from solid3dtech is different than the functions inside Inventor. It can handle "not developable" surface or quilt surface.
Message 11 of 17
carau1
in reply to: mdwildcat

If you are wanting to bend your tubing/pipe, you might want to use contour roll for the bends and contour flange for the straights.  Again, as above, you will want to use a radius and not diameter to construct. Leave a gap of .0001 or if that doesn't work, try something very small. Then you should be able to unfold. Good luck

Message 12 of 17
XXL_darth
in reply to: mdwildcat

Sheet Metal: Contour Flange Creation failed.
Part1: Errors occurred during update
Non-tangent curves found in path: flat pattern cannot be correctly created. Edit sketch and add constraints to the curves.
Feature Compute failed.

 

Im trying to build a flange with curves for a shelf, the program does project it but then it throws this msg, Do I upload the file so that 

someone can help me fix it or tell me how to fix it???

Message 13 of 17
JDMather
in reply to: XXL_darth

Have you installed all Service Packs for 2013?

 

Sketch2 is not fully constrained?

Sketch2 appears to be missing a Tangent Constraint?

Sketch2 is not connected to an edge?

 

Here is image with sketch connected to edge (you can use top or bottom - adjust the R as needed).

 

Contoured Flange.png


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Message 14 of 17
JDMather
in reply to: JDMather

You could leave it as Midplane if you want to, but you still-

should constrain your sketch

select edge to follow

set to midplane.

 

midplane.PNG


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Message 15 of 17
XXL_darth
in reply to: JDMather

I did everything but the tangent constraint, I kinda solved it by doing the contour first and then the full body, either way, thanks a lot!!!
Message 16 of 17
JDMather
in reply to: XXL_darth


@XXL_darth wrote:
.... then the full body

Depending on whether there is any more geometry to this - I problably would have done the entire part as one single Contoured Flange.

There was no need to do as two separate features.


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Message 17 of 17
WHolzwarth
in reply to: XXL_darth

Perhaps this way? Oh, I see, I'm too late.

Walter

Walter Holzwarth

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