Polyface Mesh to Solid

[joefromjersey]

Hi I created a 3D math surface using 3DPLOT. However my outcome is a polyface mesh and I need to convert it to a solid. I have already tried the "Convert to Solid" & "Convert to Surface" options in the Mesh tab but I get "Mesh not converted because it is not closed or it self-intersects." I also tried the f2s.lsp but I am unsure on how to select my object.

Here is my object:
https://www.yousendit.com/dl?phi_act...QzN3TGhvZE1UQw

It is basically a 3D plot of cos(x) + cos(y).

[ReMark]

Would SURFSCULPT work?

"The SURFSCULPT command also works with solid and mesh objects."

[joefromjersey]

I keep getting "1 object found" followed by "1 object filtered out". I am not sure if I am selecting the object correctly though.

[JD Mather]

Attach your file here (not some 3rd party site).

[joefromjersey]

It's not letting me upload my file for some reason. Is 2.67 MB too big of an attachment?

[ReMark]

Yes, I believe it is. Can you zip and retry?

[joefromjersey]

Zip is still too big. I uploaded onto a better file sharing site though.
http://www.mediafire.com/?jaexfm17qjxxee8

[SEANT]

Perhaps the sine waves can be plotted as splines, then lofted. That surface can be used to slice a 3DSolid.

Here is a quick trial; not an exact match but pretty close.

[joefromjersey]

That looks great! How were you able to plot the splines from just one part of the sine wave? Could you provide some more details from your procedure?

[SEANT]

If you look in the SineConstruction drawing you will see the curves I used for lofting on ConstrGeom layer. That geometry already existed from a previous project - I just scaled it manually to get a visual match of your mesh geometry. The curves were originally computed via Excel to match an amplitude of 1 and a period of PI. Excel could just as easily created any custom amplitude and/or period required.

With the lofted surface I sliced an appropriately sized 3DSolid block. I used Block References to keep the file size down, but the process can be modified to get a solid of arbitrary size - either by boolean union or multiple period curves.