Michael thanks for your reply.

You're right, maybe in my previous post I didn't make myself clear...

Let me explain.

> Hi Marco, well I guess it depends on what you plan on doing with the second model....

I know that with the cleanup model I loose the chance to do some things, like untrimming or repairing,
but my intention is to use the cleanup model only when I have totally completed the modelling process, and I want to use the model
for its final purpose, that is, assembly, exporting, rendering...

Instead, I will use the original model if I have to continue to operate on it.

Well...given what I told you, my questions is :

Is it a convenient techinique to run the "ShrinkTrimmedSrf" and "merge" commands in order to get a cleanup model ?
(I refer in particular to the "merge" command)

Thanks for all,

- Marco (mkdm)