Having trouble turning mesh into solid

[octo12]

I have imported data showing the contours of a surface into autocad.. I want to output it as an .stl of the same contour map but with a higher resolution and smoothed out. I created a mesh and exploded, but now at the stage where I want to convert to solid it doesn't let me do it..

 

Is there a way of making the mesh into a solid?

 

Command: _convtosolid Mesh conversion set to: Smooth and optimized.

Select objects: Specify opposite corner: 53646 found

Select objects: Specify opposite corner: 37336 found (6124 duplicate), 84858

total

Select objects:

84858 objects cannot be converted.

Command:

Command:

Command: _EXPORT

Select solids or watertight meshes: Specify opposite corner: 84858 found

Select solids or watertight meshes:

Selected objects must be solids or watertight meshes.

84858 objects removed from the selection set.

[ReMark]

Yes, there are. Check out Similar Threads listed below for possible solutions.

[octo12]

I've tried this .lsp shown in the thread linked here.. but it doesn't make my mesh into a solid

 

http://www.cadtutor.net/forum/showthread.php?1408-m2s-Mesh-to-Solid

 

the other thread linked to in that one has gone..

[ReMark]

Your best bet would be to supply a copy of your drawing. You may have to utilize Dropbox as I'm guessing the file size will be over the limit allowed here.

[octo12]

Ye its 35mb.. I will have a look at dropbox and zippyshare etc. I have uploaded it to google drive to show a friend.. Is there a way of sharing that publicly on this forum without uploading again?

[octo12]

Ok I've set google drive to share with anyone who has the link.. this is the dwg with the mesh, hope it works

 

https://docs.google.com/file/d/0B5SPeOy-OH4IMFg1OExrUFJUZHM/edit?usp=sharing

[JD Mather]

I have imported data...

What format was the imported data?

Is that a picture of the original or after you tried to "fix" it?

[octo12]

Yes thats after I "fixed" it ;-) there was no mesh before.. I can also upload the original before any possibly counterproductive tinkering

[octo12]

The original "virgin pre-fix"

 

pre_fix.dwg

[octo12]

The google drive link doesnt appear to have come up must be awaiting moderation