Square to round transition sheet metal

[frankze8]

Is it possible to make a square to round sheet metal transition in fusion 360? I have tried for a while but the flange won't grab the round.

[laughingcreek]

This attempt is pretty close.  You can make the fillet in the first sketch really small, but it won't work with out some kind of  fillet there.  I only did half.  I was having a hard time getting it to unfold all the way around, and it's time for bed.

[lichtzeichenanlage]

@laughingcreek: Great work!

[frankze8]

Thanks for your efforts. Your design looks nice, however it would not work for my application.

What I'm wanting to do is make four separate pieces, from the corners up. 

I have included an attachment so you can see how it's supposed to look. I know technically it's done all wrong, but I did this in the first half hour of my 360 experience.

[chrisplyler]

In this video, the user is able to flatten a revolved cone shape, but I am unable to do the same with a loft. My model works parametrically, with the ability to change the rectangle's width and height, the circle's diameter, and the overall transition length. But it won't flatten. The curved bits I made with Loft aren't considered sheet metal "bends."

There OUGHT to be a Flange workflow similar to Loft wherein you could go from one line to another, using rails the way Loft does, and of course subject to some minimum bend radius that depends on the thickness and k-factor defined in the sheet metal rules. If that type of Flange creation were possible this would be easy.

[laughingcreek]

What you've drawn is a non-developable surface, so your not going to be able to make that with typical sheet metal tools (either software or a break).  Now if you want something like the picture you attached earlier, which has flat triangular surfaces transitioning to cone shapes, there are ways to do that.  such as my original posting.  or a modified version like the attached.

[frankze8]

Laughingcreek,
Thanks a lot for your efforts! This last rendition is really close to something I could use to make a real product. Thanks again very much you have helped me learn a lot about how fusion work. Hopefully I'll get some time this week to play around with it some more.

[harriyt72]

Complicated, but works.

[TheCADWhisperer]

@harriyt72 

Your sketches are not fully defined and I suspect that you are working a bit too hard.