I'm wondering if there is a way to do progressive Booleans on an object with the for loop so that the following Boolean ops use the output from the previous one. When I set up a scene with a Boolean in a for loop, it just does it on a copy of the base object so I get duplicates.

Have you checked out this help page? http://www.sidefx.com/docs/houdini/model/looping.html [www.sidefx.com]

Thanks. The Swiss cheese example looks like what I’m looking for