From:  Michael Gibson
3290.12 In reply to 3290.11 
Hi Burr,

> More just that I dont "remember" this method and usually
> do the boolean diff-deletes faces-try to constuct the surface
> thing when it is so simple as this.

One thing though is that the "reconstruct the surface" part can be bothersome - on something that has a smooth outline like this you can pretty easily get some kinds of unwanted compression or subtle stretching in corner areas when trying to surface it with a sweep or something like that.

When you have an extrusion that is cut to the smooth outline shape, it tends to be more simple and better geometry, because the underlying surface is such a simple straight extrusion in that case.

Another way you can do it though is to use Trim instead of any booleans at all, that works like this:

You take the side curve and extrude it into a surface like this:

Then select the surface, and run Edit > Trim, and select the Top view curve as the cutting object. The Trim command will then cut the surface up by the projection of that curve and show the available pieces like this:

Select the piece that you want to discard like this:

And then when you exit the Trim command you will have this result:

So that's another way you can do it where you have some more individual control over what pieces are going to get thrown away since you specifically select the pieces with Trim unlike the booleans which are oriented more around automatically discarding pieces based on where they are in relation to the volumes.

> Side note: 1 week and 4 days. Give Mrs. G and baby
> some love from my family.

Thanks Burr, it's hard to believe it's already been 6 months!

- Michael