Capping an extruded surface and a loft in Grasshopper

Hi all,

I am just wondering if anybody knows how I could cap an extruded surface and a lofted surface generated in grasshopper, like so:

The cap component was the obvious first choice, however as most of you may have guessed that didn’t work and I just ended up with two capped objects, like so:


The desired effect I’m after is to have my object look like this, but done entirely in grasshopper.


I suspect it has something to do with identifying the edges, however I have had no luck so far. Any help would be much appreciated!

Thanks, Callum.

This is essentially the same workaround you’d choose in Rhino. Create a cap with the larger element & trim it using the smaller element. (11.5 KB)

Ah thankyou very much! Works perfectly :slight_smile: