I know that I can take a planar closed curve and create a surface object by using the construct>planar command. However is there a way to create a surface from a non planar closed curve.

For example If I projected a circle onto a cylinder and then moved that new non planar circle (or a copy of it) away from the cylinder is there a way to fill it to make a surface object?

Maybe like this: sorry for the v 1.0 you must trim it ;)
kill the line on the third image before the loft

Hi Brian, normally the best method is instead of using project to make a unfilled curve on your cylinder, use Boolean difference to cut the cylinder with the curve and then you will have all your pieces including your solid filled non-planar piece right from the start.

Here is another discussion thread on this:
http://moi3d.com/forum/index.php?webtag=MOI&msg=1359.2
http://moi3d.com/forum/index.php?webtag=MOI&msg=1359.6


In the future I do want to add a command to fill in a non-planar surface, but even when that is in place it will make a far more complex surface than a trimmed extrusion which is what you normally want for such a surface.

If what is shown in the above thread does not work well for you, please post your .3dm model file so I can take a look at your particular situation.

- Michael

Frenchy and Michael, thanks a lot for the prompt response. What a great program. Love it.

Brian