Subtract solid without losing original?

[CAD_e_shack]

I spend a lot of time copy/pasting solid objects on top of themselves so that I can subtract them from another solid.

Is there a way to subtract a solid from another without losing the original? Or are there other more efficient ways of doing this operation?

Thanks

[ReMark]

The old school way: save a copy on another layer that is normally kept frozen. Doesn't figure into any regens.

[CAD_e_shack]

thanks for the info

[fuccaro]

Enter DELOBJ in the command line. When prompted for the new value, enter 0 -this should take you where you wish.
Also there is a command called INTERFERE -it can be used to create the intersection of two or more solids, also without deleting them.

[M76]

I've set delobj to 0 and subtract still erases the original with regions.

[ReMark]

DELOBJ needs to be either 1 or 2 not 0.

[JD Mather]

Is there a way to subtract a solid from another without losing the original? Or are there other more efficient ways of doing this operation?

Autodesk Inventor. Modern 3D programs like Inventor allows you to choose to Union, Cut or Intersect and elect to keep the original toolbody.

[ReMark]

Cad-e: AutoCAD 2005 to Inventor 2011. Man, that is going to be some shock. And I'm not just talking sticker shock. I don't suppose you're a student are you? What kind of work do you do?