Leaderboard

I would explode the mesh object and attempt to retain/modify portions of it using polylines. Then I would reconstruct it as a true AutoCAD 3D solid. But this may not be feasible in some cases. I have done such a thing when I have downloaded 3D Mesh models of valves.

Using the support paths is the easiest way and it does not matter if at work or at home if they don't exist Autocad will skip, Ok a simple way around maybe creating a trusted path is to map a drive but it can also be a directory so you could have a trusted path like L:\ for lisps on home computer. Thinking a bit more it could be the name of you network drive. Map a drive can be done at CMD (DOS) level so you could just do when you take it home to look on say a USB. Once turned pff its gone. The other way is you can add trusted paths via lisp, whilst you have trusted paths its so easy to get around it almost why do it. I guess also can remove. May be better here to use setenv and getenv if you close Autocad can get old back. I would setenv once only running the couple of lines of code, don't do each time then no chance of having wrong paths. (setq oldtrust (getvar 'trustedpaths)) (setq newtrust (strcat oldtrust ";" "L:\\Autodesk...")) (setvar 'trustedpaths newtrust) ; back to old (setvar 'trustedpaths oldtrust) (setvar 'trustedpaths (getenv "Trustedpaths"))

Hi Hanhphuc, the best way is "make it simple " , like your answer. Simple and clear .