Hi -

I have a bunch of stacked 2'x'2 AP cages that I was thinking of "connecting" by cutting a hole in top/bottom of a pair of them and
dropping in a tight-fitting piece of pvc as a channel between the two (Bob Applegate's cage design description on his website captures the idea).

Does anyone have recommendations about how I might go about this?

In particular, wondering if I can use a hole saw bit on a drill to do the cutting and also how I'd go about making the connecting pvc snug and sealed.

Thanks for the help.

/scott