Well i've made some good progress, today I finally got the gantry attached to the X Axis, also got the legs on. So far my main concern (not sure how to explain this) of the gantry twisting, like when the router is all the way on one side, and it has a lot of force on it, that's a twisting force. Initial tests showed that I couldn't even budge it, so i'm quite happy, and I haven't even done any re-inforcement yet.
Not sure you can tell from the pictures, but much more re-inforcement will be done to the gantry connection area. There are hiwin 15mm rails on the underside of the X axis, the same ones that are visible on the gantry for the Y and Z axis.
Surprisingly it slides with ease, the main gantry that is. I made sure everything was within very tight tolerances the whole time, and I guess it paid off. I can just push the gantry and it slides along and it's still extremly rigid.
I plan on adding more cross members to the main table section as well, which should also increase strength of the table, and help avoid twisting as I discussed about near the middle of the table.
Also, you may go "the damn thing is on wheels!", but I put those one because I want to be able to move it out for maintenance reasons easily, I plan on anchoring my machine into the concrete wall you see to the left of it, I'm pretty sure it's solid
Ross