Try DivBreak, please.

DivBreak? What's that?

If I understand your question correctly, you don't need to divide your arc into multiple segments in order to import it to 3DS Max. You just need to adjust your import settings.

John Connor wrote: I would recommend that if a person suggests a routine that is not standard to an AutoDesk product they describe what it does and where it might be found.  Personally I, for one, would find that information to be very helpful.

I agree. As you can see from my previous post, I had no idea what was being suggested. I knew it wasn't a standard Autocad command, but I didn't know if maybe it was a command that's available in Architecture or Civil or some other program? My other thought was maybe it's a lisp routine, but there was no mention of where to download it or what it does. A little more information would be very helpful in situations like this.

But as I said, there's no reason to break the arc into multiple segments. You just have to adjust your settings in the Import dialog when you bring your CAD file into Max.

Try setting "Curve Steps" to 20 and "Maximum Surface Deviation" to .01 and see if you get better results.


Edit: I just noticed that the word DivBreak in PepaR's post is a link. It's very difficult to distinguish links from plain text. It would be nice if links were a different color and more bold so you can tell at a glance that it's a link.



Edited by Cad64 - 18.Mar.2011 at 15:36

Congratulations guys, I waited for discoverer of a link ;).

You will never get an absolute perfectly smooth curved surface from your imported CAD file. The import settings I mentioned will only get you just so far. Once imported, you will need to apply a Smooth modifier, or possibly a TurboSmooth modifier in order to completely smooth out the curved surfaces.