Need modeling help, "sweep 3 rails" type surface

Rhino Rhino for Windows
1

I am struggling with modeling surfaces that curve network, sweep, and patch/loft can not build from a curve based form. I basically need a “sweep 3” command. Anyone have some helpful ideas?

Previously I have used tween curves, match then extract isocurves to build a somewhat wire frame to build surfaces from that, but recently the forms need to be smoother, and this workflow doesn’t work to produce printable accurate builds.

If this is a bit unclear, could I send someone a sample file of the curves I’m trying to build surfaces from for some pointers?

Thanks a bunch!

–Matt

2

Just upload your file here. The option to do so is the command line toolbar. It’s the white arrow within the black cloud icon.

3

Give us some images, at least.
We know that the problem is in the curves layout not in the tools :wink: