Thanks. also exclusion regions and inclusion regions -- will they serve any purpose if I am just using carpet tape to stick the plastic blocks of material or do they serve another purpose? I assume they are for avoiding your clamps?
Notice the "machine whole stock"? This will remove all of the stock that is not geometry (the part).
The inclusion ensures that machining will affect everything inside (leaving the tabs). The exclusion for the corners of the top and bottom plates excludes stock that is a waste to machine... this saves a LOT of time.
Another reason things are done this way is to ensure that the large openings are machined away. This prevents anything from coming loose and potentially ruining the part and/or breaking an end mill.
Finally, since I wanted to save a LOT of time, the exclusion regions made a perfect place for some of the clamps (but I could have done it without depending on this).
I've said it it in many places in the forum - I have a nasty bias against tape and wax. I NEVER use them (unless I am forced; which is just about never). They do not hold well on larger and faster machines and gum up my expensive end mills.
I have a sea-of-holes bed for by Nomad and use step blocks and clamps, or screws to fixture most of my parts. The Nomad vise works for some things too. I machine a jig when I need to do something complex.