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Symmetrically Opposite Sheet Metal Part - Bend Other Direction

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Topaz II

Symmetrically Opposite Sheet Metal Part - Bend Other Direction

I have two sheet metal parts that are symetrically opposite that come from the same blank. Currently the bent part has a unbend and a bend back feature. I am converting an old drawing to cad where it said other part (right hand part) is symmetrically opposite, but now I would like a model.

With the bend back feature, can you change it to bend one way for one part and bend the other for the other part. I am fairly familiar with family tables, but not as familiar with sheet metal.

Thanks, Dale

sheet_metal_symmetrical_part.jpg

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17 REPLIES 17
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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

You can't change the feature to just bend the other way. What you could do is remove the "bend back" feature you have and instead add a "bend' feature. Then suppress that "bend" feature and add another "bend" but the opposite direction. You can then use programing to turn on which bend you want based on the part being a right or left.

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

Forgive my ingnorance, for the little icons, there are only unbend and bend back. Should I just create a 90 degree flange instead?

Thanks, Dale

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

What version of Creo/Proe are you running? There is no reason to change the base model you have, by adding a flange. You should have a "bend" command. This allows you to select a surface to bend, along with a direction and bend angle. The main thing is that you don't want to be using "bend back" that will only allow you to "undo" the unbend.

Image+8.png

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

Creo/Pro 5.0

sheet_metal_symmetrical_part_icons.jpg

Thanks, Dale

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

I just noticed the icon above it. I thought that one was for punch. Let me try that.

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

Getting stuck on angle vs roll? Like I've said not very experienced at sheetmetal.

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

I'm sure what you mean by "roll". After you select the surface to bend and the bend line, you should be able to specify a bend angle and bend radius. Can you post a screen shot of what you are seeing?

Image+9.png

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

sheet_metal_symmetrical_part_menu.jpg

The first thing that pops up in the menu shown. I have to choose angle or roll.

Also, you can seen the surface from when the part was unbent.

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

When that menu pops up you should be able to select done, then define the bend location and angle. I haven't worked with Wildfire in a while so I'm not sure how exactly to perform a bend. Have you tried using the Wildfire help for directions on how to before the bend operation?

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

Part bend table or feature bend table? (Thanks for your time)

sheet_metal_symmetrical_part_menu2.jpg

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

It will probably be easiest to create using the "part bend table".

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

I then picked inside radius.

Now setting up the planes for the sketch, I picked the small plane on the closest edge, but it says invalid selection.

Is that related to the fact that it was unbent?

sheet_metal_symmetrical_part_menu3.jpg

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

This is the part where you will probably have to consult the Wildfire help. These are all options that are not in Creo anymore, they simplified the process I'm not sure how the bend feature works in Wildfire, its just been to long I don't remember. You should be able to google it and find a video showing you how to create the bend feature. Once you have that feature created you should be able to change the bend direction by simplying change the bend angle dimention from 90 to -90. Sorry I can't help with that, good luck.

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

It will only let me pick the large flat surface.

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

I think I would make the bend by making a wall. While the part maybe a mirror, it might not require a geometric mirror about the bend. What I am getting at is that maybe only a few features need to be mirrored rather than the bend. Sure, it will sit in space differently, but the assembly will take care of that.

Just a thought. But I thought you can give a direction to the wall even in WF. Then you place all your features, and then you can unfold. problem being, of course, is that when you reverse the bend, you might loose all your features, or at least have to redefine them anyway.

Saving it as a mirror part is not an option?

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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

I wouldn't try to make the second from the blank of the first, I'd simple save the folded part as a mirror (Save As -> Mirror). Make sure it's geometry dependant and you're fine. If the mirrored part is 100% symmetric from the original, then their flat patters would by definition be the same.

--
Doug Schaefer | Experienced Mechanical Design Engineer
LinkedIn
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Re: Symmetrically Opposite Sheet Metal Part - Bend Other Direction

I did a quick video from a test that worked better than expected. I know you don't have Creo 2.0 but your version should work the same way. Easy enough to test, anyway.

In this case, I used a flat from the 1st wall. Flattened it and placed a hole and extrude cut using a "preserved edge" rather than the datum plane. Then used the bend back feature. I then edited the edge the Flat was built from by selecting the the opposite edge. All the subsequent features followed correctly. Just be careful on how they are defined.

Video Link : 4183

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