Do you want a global solid or give a thickness to the general "cylinder" ?

Hi Bob, here's a version that's a solid now. There were a few places where there were holes to fill in. There are a lot of little sort of "shelf" like areas where some cutting pieces didn't quite line up with each other exactly or something like that.

- Michael

THANK YOU!!! How did you do that?

Bob

Hi Bob,

re:
> THANK YOU!!! How did you do that?

First I used the script from here to highlight all "naked edges" - those are edges that are not joined between 2 surfaces:
http://moi3d.com/forum/index.php?webtag=MOI&msg=6051.2

That shows the areas where there are holes that needed to be filled. Then I constructed surfaces to fill in the holes, using Construct > Planar and Construct > Network a couple of times in different places. After constructing a surface I used Edit > Join to glue it together with the main body, once you have filled in pieces so there are not any naked edges anymore that makes it a solid.

- Michael

So it was for the complete volume and not for thickness! :)