LOL, you didn't offend me. Takes a lot for me to get agitated. I was simply wanting you to elaborate on what you meant so I can better understand this program. I have been a hard surface modeler in 3ds max for over 20 years. I bought MOI I think around 2 years ago. Messed with it once and haven't touched it since. I made my self a promise that I'm going to learn this program this year, even if it means I have to ask 40K questions to do it.
On the surface MOI seems rather simple, but in fact its the exact opposite. I mean yeah you can Boolean one object into another easily enough, but if you want to understand blends, networks and such. It takes a deep understanding, which was the reason for my questions.

Hi Billabong,

re:
> Thank you again. Can you tell me what you did, because I tried the trimmed,
> untrimmed method you told me about a couple of days ago, but it didn't work.

The retrim part was a little finicky, I needed to draw in some lines to use as trim cutters instead of reusing some of the same original edges.

The 2 halves don't seem to quite line up exactly down the centerline, like a mirror axis line maybe was just slightly not axis aligned.

Also I discovered that a quick hack to clear this particular type of trim boundary corruption is to separate into individual surfaces and export to an IGES file and re-import it back again.

- Michael

Hey Michael,

When I saw that center line, that's exactly what I thought. I didn't mirror or trim it exactly on the center line. Those inside faces really freaked me out,lol. Thanks again for fixing it.