Surface Trimming/ Slicing

[BMWiley]

Im trying to slice a surface into sections. Im not much of a surface modeller, never really tried. For example the surface is a cylindrical shaped peice. Multiple faces, and peices. When i slice through it, it slices some peices and others it fails to slice. Confusing. I would upload the peice but unfortunatly i cant due to contract restrictions. But is there any methods of slicing or tips that are a common practice when working with surfaces? Not sure what info you need. Just ask and ill tell you what i know/can.

[tzframpton]

Not trying to discourage or anything but AutoCAD really isn't the program to use for surface/mesh modeling. Solids are fantastic but a NURBS modeler (eg: 3DS Max, Maya, Rhino) is really needed for meshes.

[BMWiley]

Oh believe me, i know Acad isnt good for it. But all im trying to do is take sections for dimensions. I find it easier to rotate and stuff. Not alter the surface beyond trying to make sections happen. I have Rhino and SW but my knowledge of either is complete newbie. If your saying it will not work then i guess i have no option but to learn one of them to make this happen. I was just trying to get this done in Acad, being it my trade program. I plan on learning both regardless but the turn-around time for this project will not allow it.

Great Avatar Pic, and even Greater Movie.

[JD Mather]

Surely you can make up an example problem that exhibits all of the behavior of the proprietary model.

[BMWiley]

Here is what im dealing with. I would like to take sections of the increments you can see. The green sruface is the plane id like to use as a section. Whats happening is when i do slice, some of the surfaces will slice, but the others will not. And its saying that its not even on the same plane.

[JD Mather]

Why surfaces rather than solids?

[BMWiley]

The file was originally just a surface. Not too familiar with surfaces and surface modelling. I couldnt figure out how to convert to solid. Not sure if the construction of this is solid-able. lol. Also, tried to add the DWG here but it was too large.