sheetmetal "unbend" command question. The button is gray.

I am learning the sheet meatal modeling. I try to unbend the part and
punch a hole, and bend back. But the unbend function is gray. I search
the help document but did not find a solution. Need your advice,
Thanks a lot.

 

I am learning the sheet meatal modeling. I try to unbend the part and
punch a hole, and bend back. But the unbend function is gray. I search
the help document but did not find a solution. Need your advice,
Thanks a lot.

I worked on this a little bit yesterday, couldn't get the Unbend icon to grey out. It was always available, but I realized today that I didn't try creating unattached walls. Mine were all flat or flange or extruded. Unbend and Unbend All worked as they should. Maybe you could give a little more detail on how you created the walls (you couldn't give less).

David Janes

 

Thanks David, you are the man!
It is the unattached extruded wall that disable the Unbend function. I
suppress the unattached wall and the Unbend is available. Stupid me.
Why would I use unattached wall to create that feature. Thanks again
David!

 

Thanks David, you are the man!
It is the unattached extruded wall that disable the Unbend function. I
suppress the unattached wall and the Unbend is available. Stupid me.
Why would I use unattached wall to create that feature. Thanks again
David!

There's nothing wrong with using unattached walls. I guessed at that one because I never use it. I'm sure it's quite useful in certain limited circumstances, for example, when you're building a "box" in very restricted places and you want to build the walls, freestanding, almost using abutting surfaces to build the wall on. I think you might have gotten the unbend (which I didn't think of earlier) if you'd merged the walls. Or maybe you also need to add an edge bend, as well, not sure.

David Janes