The base is put together and here's a look at it. I'm using standard L-Brackets to join them together - 2 on each join so it should be sturdy enough. The thing I like most about this design is I'm not locked into this once I'm done - things are easily adjusted and tightened up - something I don't have with machine #1. (UPDATE - I am no longer using the L-brackets for holding the base frame together - I made my own brackets from angle aluminum, the one piece design is more solid...)
You can see in the bottom left corner of the first picture - Yup :) Machine #1 :) looks very small in comparison to the new machine - which, by the way, measures 57" X 36" so far.
Some of the things shown on this site are very dangerous and should not be attempted unless you know all of the risks involved. To add, I don't always take the necessary precautions that I should, so just because you see me do something, does not mean it's safe, and I'm suggesting that you DO NOT attempt these things unless you do your due dilligence research and know all of the potential risks.