Don't mean to sound snippy but have a look around and do a search or two.
There is a wealth of information here and several projects that have build logs and such to read through.
I might also suggest building one of the smaller machines that use a dremel or trim router frist to get the ideas and process down. Then proceed to the larger model you are wanting. Most follow that path and use the first table to cut parts for the second.
There are also a couple of folks selling or giving away plans.