splines are never on elevation 0 or z value 0

[diala.nabhan]

Hello all,

I am preparing my file for laser cutting and the pink line in the image is the reference line on elevation z: 0.

Splines of the topography (the reddish one) are never on 0 level no matter what I try.

Editspline, editpolylines, SPE, Rebuild, drawing them again, exploding them, joining them, and even point by point control Points in the properties panel. 

When I put 0, it is still not 0 in the drawing.

I tried to copy them to another file but still not helping.

They should stay splines at the end. 

Any help?

[3wood]

Have you tried command FLATTEN?

[diala.nabhan]

Yes I did, I forgot this one to mention.

I think it is lost between all these different commands and smth maybe graphically happening.

[3wood]

Can you upload an example dwg file?

[diala.nabhan]

here is the file that did not work 

For whom ever will need this, I moved the drawing again to a new file and it worked after changing each control points Elevation to 0 so I had to explode them first, turn them into polylines and then again SPE to be splines!

I am sure there is much better way though! 

[dany_rochefort]

I am checking your topography lines and all Z values are 0.   Rather than using Properties dialog box i am using List command.   Maybe im not understanding the problem correctly ? But is says everything is Planar Z = 0,000 

[leeminardi]

It would be more helpful to post the drawing with the problem rather than one where you have solved it.