#Not enough RAM
When you say you tried DXFing out _just_ the AME solids, but that they wouldn't
load, what _exactly_ happened? Everything went fine, but there was no geometry
in the 3DEditor when you were done, or 3DS locked up, or what? The more
specifics you can give the better.
Pardon if you know all this, but to DXFOUT an AME solid, you first need to set
the SOLWDENS ACAD variable to control the mesh complexity, and then SOLMESH the
solids. Also, you can not DXFOUT by _entity_, as the meshes are blocks, I
believe, by default, and DXFOUT by entity does not write out blocks. So you
would either need to explode the mesh-blocks first, or not use the "Entity"
option in DXFOUT.
As far as locating the allegedly over-large entity, try DXFing out each
layer by itself. Remember, you can't use the entity option if you want
blocks to export, so you'll have to either:
a) Explode all blocks, and then turn all layers off but one, and do a
DXFOUT/Enities/<select all visible items>/Binary. Then turn off
the visible layer and turn on another to repeat the excercise, and
so on.
-or-
b) Load the "dellayer" LISP routine that comes w/ ACAD. Save your
DWG. DELLAYER all layers but one. DXFOUT/Binary. Either undo
back to before you used DELLAYER, or reload the DWG. Repeat for
each layer.
Using either of these methods, you will then have a separate DXF for each DWG
layer. As you try bringing each of these into 3DS, you will find which ones
won't import. If there are some layers which have _obviously_ low entity
counts, then you could write those layers out together, saving you some work.
What is the drawing of, if I may ask?
Dave