If you are using Rhino 4 you can just type in "clipping plane" and you'll be able to see it in a viewport. However, you'll have to be more specific with what your desired end result will be. i.e. a rendering, acad section, etc. If you just want to look at a section on screen then you're good. Rhino 4 has much improved printing but I haven't played with it enough to see how well it works.

oh any trick with Rhino 3?? I haven't upgraded to version 4 yet

you can just type "section"
and it will ask you where you want the section to start and end and voila!
you'll have yourself a section.

Rhino 4.0 has the "ArchCut" Tool available from Rhinolabs.

I would use this tool.

Sorry...didn't see you didn't have 4.0 yet.

Could always export to ADT and cut a section there.

I got the section... just missing the elevation behind. I export to autocad but then the massing comes out to be these meshes and it becomes hard to c... anything else that would be able to help?? maybe a setting during export so it would come out as simple mass instead of the mesh polygon?

last resort. split model and shoot a make2d.
bad option, but it will work.

why is that a bad option dev?
i do that all the time. it takes a few steps, but it works very well.

i do the split - make 2d as well. yay.

i do that as well make2d combined with section.

first resort. split model and shoot a make2d.
good option, and it will work.

thanks. it works.. well!

I do that all the time too.

I also draw my section plane, then do an intersect if I want to keep my surfaces whole. When looking for those lines in the way back I'll dup edges and then project them onto my section surface. Once done and my sections been exported to a dwg I'll select all curves, delete and be on my way.

of course there's also "ctrl+z"

you should just script everything. it's quicker...then just assign then script as a macro to a button.

rhino script is very very powerful

first option should be using clipping planes for complex models. when working with models that have very complex skins, the split will fail almost everytime. or crash your machine (even a powerful workstation).

for simple stuff splitting should be fine. i agree.