Wall Layer thickness changing when cut by family with void

[jmk]

I have 2 families that in combination cause the outermost wall layer to appear resized where both elements are cut. The wall does not have wraps turned on. The door is wall hosted, and has 2 plans defining the interior and exterior closures, it is set to wrap both. The third family is a fire extinguisher that is not hosted, but can cut the wall for recessed applications. When the family cuts a wall the door is in the outermost layer displays at the thickness specified in the door for the wall closure.



What can be done to prevent the wall layer resizing?

[Twiceroadsfool]

I saw something very similar a few years ago, with a Face Based family i had built (also for an FEC, as coincidence would have it). I had to rebuild the FEC family, to make it not do that anymore. Never did find out what was causing it.

[jmk]

Interesting - this one isn't face based, just level hosted, and I had just built it from scratch. It's the void that's triggering it, I'd tried using a nested, labeled void for the first time (so that when it isn't needed its completely gone) so I'll play around with that. Maybe going back to just getting the void element outside the object its cutting when not needed would work better...

[jmk]

On further experimentation it looks to that any void partially cutting a wall will cause the error if there is another element in the wall that is set to wrap, or the wall is set to wrap.

If the void goes all the way through the wall, or there is nothing else cutting the wall it isn't an issue.

I tested it with just the void family, as well as basic void cutting the wall in a wall hosted family.

The only work around that I can think of is to split the wall into a part with the door.

[Twiceroadsfool]

I thought that too, but i can host multiple families in a wall and not have it do that. There is "something" about the families, that causes it. But i really struggle to track it down.

[jmk]

It seems to only be if the void depth>half the wall thickness, and if layers are outside the core and can wrap.

I've found complaints about the issue as far back as 2010, so I put it on the Autodesk Ideas Forum to see if that'll get it anywhere.

[sdbrownaia]

Its still causing it

[cellersick]

Doing quick testing... maybe check for reference planes marked as "Wall Closure" in the family? I'm noticing that things behave better if I have 0 or 2 planes marked as "wall closure". For example, if I mark the plane that controls the depth of the void as "Wall Closure", I also have to mark the plane that aligns with the Reference Level (where the face of the wall would be). When I have just the void plane marked as "Wall Closure", I'm noticing the wall layers thicken.

That might explain why it happens more frequently if the wall is cut by another insert - competing / conflicting wall closure planes?

This is interesting too: when the family has 2 closure planes, the finish layer(s) will wrap AROUND the void, but ONLY on the exterior side of the wall WHEN IT WAS PLACED. I can't seem to get the interior side to wrap around the void, unless I place the wall and flip it. Doesn't seem to matter even if the wrapping is set explicitly to Interior, it doesn't wrap the interior layers.

[jmk]

I don't have any reference planes marked as wall closure, I did try putting one in and that didn't change anything once the void depth crossed the center of the wall.