I thought I had a pretty good grasp on what's required when modifying parts; apparently I was wrong.
I want to change the diameter of the base header. As far as I can tell, all the dimensions are blue. I relaxed all the live rules options, but I still can't make this simple change.
Solved! Go to Solution.
My only comment is that thinwalls are (still) problematic in synchronous. If you detach or delete the thinwall it's no problem to change the diameter.
I'm starting to think synchronous is not ready for prime time. It's taking me more time to modify a part in synchronous than ordered and I don't even have that much experience in ordered.
The part is a little weird to me with features that seem unneeded but can't be deleted Maybe someone smarter than us will chime in.
Edit: and the fact that you can't reduce the diameter much without the disappearing act.
But I hear you about ordered/synchronous.
Maybe if I explain my reasoning, the features will make sense.
I tried to model the header just like the physical part. We have different diameter pipes with different wall thicknesses. The ends are capped and the thicknesses of the end caps also vary. That's why I thin-walled both ends of the tube and then added the end caps. I was hoping this would give me flexibility when modifying it for other sizes.
As I'm typing this, I think I should have added the end caps as separate bodies. I think the end caps merged with the tube and that's why I can't delete them.
OK. I figured there were end caps and, yes, I guess separate bodies would work better. Still not sure why the disappearing act.
Here's your problem. There's an extra face on the inside of the tube. Synchronous wants clean topology. Once you get rid of that, things work well.