It's not more simple to make a simple scale *100 for all objects ?
Make the Boolean operation
Then Scale * 0.01

Hi Pilou,

re:
> It's not more simple to make a simple scale *100 for all objects ?
> Make the Boolean operation
> Then Scale * 0.01

That's probably not going to help for this case - on one side of the object there doesn't seem to be any thickness at all, the inside and outside surfaces on one side are directly overlapping on top of each other. That kind of self-intersecting object will confuse the booleans.

@ Oliver - does Brian's file above solve it for you?

- Michael

Thanks again, Brian, Pilou and Michael !
Unfortunately, Shell didn't work for me, from a clean joined surface
I get a messed up joined surface, not a clean solid.
Basically, joined surface would be fine, but as you see
3D Coat, the program I texture in, obviously has Normal
problems after import.

Hi Oliver - shell in MoI for thickening a surface can only really work on a single surface or one that is all smooth. Areas that have several surfaces meeting at an angle to on another are much more difficult because the offsets become separated and need to be extended out in order to meet up with each other.

If you make your object a closed solid rather than a joined surface by capping it off, shell might have a better chance, but what I'd probably do would be to manually make the inner core by doing a curve offset of the top and bottom pieces and then lofting between those, then do a boolean to cut it out, see attached model.

- Michael

Ty, Michael, that did the trick.