I've been tasked with unfolding a customers (plastic) part that has a living hinge. I have done this in the past by adding a sheet metal bend. It seems as though SWX will no longer work as it did before. When I add the bend, all of my previous features disappear. My techie from go engineer says it never worked the way I describe. Was I dreaming? No, I recall being wide awake! When did SWX stop allowing sheet metal bends to coexist with other non sheet metal features?
It may have done it for you by accident? And so you don't feel like it's just you, years ago I saw it do something similar on a part I had modeled up but it should not have done what I saw, it was a bug. Or maybe your geometry (imported?) and the walls somehow allowed for this to happen? So, yeah, it would be nice to have it do that, otherwise some programs have a bend feature to do this.
There are a couple ways to do this but normally you model a plastic part with a hinge in the folded or closed state or have sketches which reference a closed state to help reference and model for the unfolded state and bridge or join the two halves together. With multibodies, or say, rotating the top lid into a open state, and combining the hinge, helps keeping everything in a single part file.
So, currently (no bend function), it's a multiple step process in building/referencing the open/closed states and for molding
I haven't used sheetmetal in 2004, but in the old days, SWX DID "allow sheet metal bends to coexist with other non sheet metal features", provided the latter followed after the sheet metal portion of the history tree.
As I understand it, once you add items which are not of sheetmetal thickness, it is no longer possible to add bends, unless you roll back above that addition. Makes sense.
Is it possible this is why it worked once up on a time?
The part is modeled with various features up to the point where there is an extruded piece that will create a 90° bend. After I add the sheet metal bend all of the part disappears except the extruded piece with the bend. All of the previous features are present in the FMT and are not suppressed. They simply have disappeared. When I roll back before the bend feature the part appears normal.