I'm starting go get a better handle on the blend command. I can see now what your were talking about on the surface and boundaries forming the edge.

Curve network sure does a nice job. If you take create accurate and smooth curves from the beginning it translates into some very nice surfaces. I need to dig in the forum and YouTube to better understand what you can and can't do with it.

Thanks again.

"For the second it basically doesn't work that way because trim boundaries don't control the surface shape directly, it's more like they live on top of the surface and mark which areas of it are active and which are holes."

If the shape data is retained when a portion is trimmed out of a surface (creating this inactive area you mentioned) Is there some kind of heal command that would remove this inactive area? Returning the surface to its full shape? I hope that makes sense.

Hi Craig,

re:
> If the shape data is retained when a portion is trimmed out of a surface (creating this inactive area
> you mentioned) Is there some kind of heal command that would remove this inactive area?

There is indeed, it's called an "untrim".

It's done by selecting all the edges that make up a trim boundary and doing a Delete. The trim boundary must belong to a single surface, if there are multiple surfaces that are joined together use Edit > Separate on them first to break them into individual separate surfaces.

Some more description of untrim here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=444.4
http://moi3d.com/forum/index.php?webtag=MOI&msg=9671.5

and also in the Object Repair tutorial here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=446.17

- Michael

Got it. Hidden right there in the delete key. That is very cool, works great. I like the ability drag a window once in sub-object mode, here I've been selecting one at a time. Thanks!