DIR not working anymore

[wim (Wim Dekeyser)]

@Philippe1

I am I need to render it as a part of a soap bubble and I need thickness, cutting them in half and using shell shows the the cut in transparent rendering.

I suppose you will be using the Rhino render to render this?
You could try the following trick:

Hollowing out insides of solids ..how is this best done?

If you don’t want to do anything in Rhino with the result, try NonmanifoldMerge followed by CreateRegions. You will get two regions. The one you want and the part you want to remove. The hollowed out piece will probably turn into two separate polysurfaces if you do anything to it in Rhino.