Sheet metal Drop Cheek elbow?

[Anonymous]

Hey Guys,

I'm new to this Inventor stuff (abour 12 months). I've been in the design of industrial dust and fumes controls systems for 30 years. I have found that everything I struggle with developing in the sheet metal package has a way to do it that is rather easy once you think in zeros and ones! I'm trying to develope a rectangular to square drop cheek or transitioning elbow from 16 gauge steel. I can loft it as sheet metal, but need a radiused throat, I can loft it in 3d modeling with a centerline to a surface and thicken one side, or all and change it back to sheet metal and it looks great, but won't flat layout!

I just need to know... Is there a way, or am i beating a dead horse? I have attached the file i've been playing with. Let me know...

Thanks in advance

Bill Nelson

[TheCADWhisperer]

See attached.

The top and bottom generate Flat Patterns, but -

the two twisted sided do not.

It doesn't look like it would be very difficult to lay them out the old fashion way.

[Anonymous]

Thanks for the help, but i need a little clarification. It looks like you redrew my surface. I couldn't get mine to flat layout. Is this because I didn't have flat, arc, flat?

I can do the layout for the sides as you suggest, but i would think that this is a fitting that it should be able to handle.

Thanks again.

Bill Nelson