have you tried 'overkill' ?

dont know if that works in 08...

oh and im guessing your not talking about getting rid of extraneous lines either...
great work me...

type in the command flatten, select what you want to flatten...

hey...sorry dont have an answer about Acad Arch...in my experience i have found that it behaves differently sometimes than just regular acad. i dont think i could use overkill, and not sure about flatten.

good luck.

thanks for the replies but neither "overkill" or "flatten" work ~ bollocks!

any other suggestions?

Flatten works for me.

If flatten doesn't work, can you do some creative file format changes? Example: print top view to PDF, open in Illustrator, export to a .dwg, then re-open in AutoCAD?

the current version of "flatten" (in the express tools) seems to be a slightly tweaked version of the old LISP routine. It appears to be used to make 2D versions of 3D elements whereas the old version took all z-values and made them zero--the new one doesn't work well if you have coplanar linework at a z-value other than 0; it also appears to be view-dependent (like Rhino).

Anyone have the old version (R2000)?? I've unfortunately lost mine and it was quite a handy little tool…especially when cleaning up someone else's sloppy drafting.

" MAKE2D " in Rhinoceros works for my stuff that i get in autocad format if that helps

i can send it. whats your email addy?

and by that, i mean i can send the old lisp :)

Open in Rhino, Project to CPlane one layer's contents at a time. Save as dwg and reopen in autocad

thanks for the replies.

I'm downloading and installing the Rhino demo now.