3d model information lost at saving?!

[johannes88]

Making a model in autocad 2000 drawing polylines and rectangles, extruding them, performing some subtract and union-actions. No problem. then when i'm ready modelling and saving to get into 3dsmax. I got a lot of errors opening the drawing. model operation unsuccesfull on the prompt. in the end i get a drawing with some modelling in tact and a lot not.
Need help, i reinstalled autocad and tried the files on another computer as well.
Johan

 

[hotrodtod]

Did you get the errors opening the drawing up in 3ds max? What version of AutoCAD 2000 are you running? Have all Service Packs been installed? Is there a backup of your file still intack? (autosave)

 

[johannes88]

No even opening the files in autocad 2000 itself doesn't work well. Parts of the model are just missing. I don't know which version i have. I do know that a model like that, quite simple, didn't give any problems in the past using the same software

 

[hotrodtod]

In the past I have seen files go from AutoCAD to 3DS Max and have corrupted themselves during the attaching of the drawing. If you would like, send over your drawing and I can scan for potential errors and see exactly what caused your problem. email at todd@efilexchange.com