No need powerful computer & / Or graphic card for use Network! ;)

You must post image and a file 3dm for more Help!

Generally 4 curves 3D closed or near closed will work for the NetWork! ;)

In the case of "near closed" or complex closed curves better to make NetWork 4 curves selected by 4 curves!



You can select all in this following one for NetWork (with circles no trimed! ;)


(for faces on Circle more simply Select circles and Construct / Planar after the Network! ;)