Thank-you Michael.

MOI is amazing. Inspirational. Intuitive and easy to use. The first thing that caught my eye towards using this great Software was how simple it was to swap and design through split views. It is becoming easier to navigate.

You have answered my question;

(self intersecting solids, the "skin" of a solid will tend to cause volume oriented calculations like booleans to fail)

Is there a way to skin such an object or cover just the outside of the object, lending a way to achieve the cross-section?

Script perhaps?

Thank-you
Dave

Maybe try with two donuts which overlab a little, rather than helix?
- Brian

Hi Dave,

re:
> Is there a way to skin such an object or cover just the outside of the object, lending
> a way to achieve the cross-section?

That would be pretty difficult. Probably the easiest way to get a good solid for your case here is to build it out of 2 halves so that each piece only intersects the other and not itself. Then they can be combined with boolean union.

Here's what that looks like, also see attached 3DM file where the boolean difference should work now:







- Michael

Super tricky! Bravo!

That method works.

Selection of profile is important.

Self intersecting Bad.

Thank-you.
Dave