@box said:
You are missing the simple step of right click on the section plane and Create Group from Slice.
This gives you the intersection that can then be easily exploded in place cutting your model. Then using a selection fence you can easily separate the two halves.
Yes, I've considered that technique, and plan to try it next time I need to slice something. And I agree that it's simple enough to do a mass-delete provided that the cutting plane was aligned with an axis, or the model can be reasonably rotated so that the cutting plane is vertical or horizontal on the screen, but in my experience, there's always a little bit of clean-up to be done.
Look, I get that this isn't hard, I'm just saying it isn't easy, and I was hoping that there would be a plugin because I do this so frequently.
For now, I've downloaded the Zorro2 plugin and am looking at the source code. I think this will be easy to modify to add the feature I want, and will get back to the forum when I've completed it.