Question about creating a solid object

Hi all,

I’m new to Rhino and am wondering how to create a solid object from the surface in the images below:

My main problem is closing the bottom of the surface. If anybody could guide me on this I’d really appreciate it. Thanks!

A solid object in Rhino is a polysurface or single surface with each edge joined to another edge without gaps (larger then the absolute tolerance). So to create a solid a surface or polysurface is needed with edges which match the edges of your shape. There a multiple ways to create such a surface.

One way would be to use Patch but the sample point spacing would need to be small enough and the number of spans in each direction large enough so that the resulting surface matches the edge of your first surface to be joined without gaps.

Another way would be to DupEdge the edge of your surface, Split it into four segments, and use EdgeSrf.

If the edge of your surface is planar then you could use PlanarSrf with the edge as the input curve.

Hi David,

Thank you so much! I successfully created the solid object using your advice.