Hopefully simple sheetmetal question

[hititfaster]

I've created a sheetmetal part - basically a rectangle - then added 90deg. edge flanges to three sides of the rectangle. I then added edge flanges to these (folded same direction) and then to these, edges flanges folded in the opposite direction. All is well; the part flattens beautifully.

I added it into my assembly and edited it in context to get a couple of cut-outs in desired places (two circular ones in flange 1 and one in flange 3). When I went back into the part, the sheetmetal wouldn't flatten.

I'm not quite sure why, as I'm sure I've done similar things before! What have I done wrong?

 

[Updraft]

For the best help please post the part. We can speculate, but faster, more accurate help comes when we have a better understanding of the situation.

- - -Updraft

 

[hititfaster]

Ok, this is new on me so here goes:

http://www.yourfilelink.com/get.php?fid=625531

*Crosses fingers*

I know it's a simple part, but I'd like to know the right way to do things from the off. Appreciate the guidance!

 

[CorBlimeyLimey]

When in the formed state, expand the Flat-Pattern1 feature and then unsuppress all the Flatten features within.

The Flatten tool should then work correctly.

 

[hititfaster]

Utterly beautiful... That worked perfectly. Thank you so much! What's the reason for this happening, just so I know what to avoid in future!

 

[CorBlimeyLimey]

I have no idea why those features were suppressed. Maybe just a system glitch or something you (or someone else) had done when creating the other configs.

FYI, you could have created the flanges in one feature using the Mitre Flange tool.

 

[hititfaster]

I'm the only one working on it, so it'll likely be me. It's ok - I can take it when it's at this stage of the design!

Thanks for the tip as well. Will try that in future.