Since I had my 2 year old daughter as my only helper… I had to get creative with mounting the rails to the table sides. First, I leveled the table and used the adjustable feet to get it as close as possible. My new 6 and 8 foot levels helped tremendously.
Then I browsed the internet to see where on the 111” side the 110” rail should be mounted. From my research, I concluded that it should be flush with the cantilevered end of the table. I hope that was right, if not, they can be moved… just a lot of drilling and tapping.
To mount the rails, I measured to the 8th hole from one side (approximate middle of the rail). It was 58.125”. I transferred that measurement onto the table side. Then I measured the overall width of the rails at 3.5” with the mounting holes at 1.75”. I wanted between 5/8 and 7/8 stick up over the table side, so I just measured down 1” on the table side and used a center punch; this would give me 3/4” stick up of the rail above the table frame.
This would be my first drilled and tapped hole. I lifted one side of the rail and got it mounted with the one “middle” screw.
Then I put the 8 foot level on the rail and brought the high end of the rail down to a position that was level so I could clamp it with the vise grips.
I then proceeded to drill and tap holes in the table frame, using the drill guide, from the center out on the rail; constantly checking for level.
Now, onto the second rail: This rail needs to be parallel, level, and square with the first rail. Knowing that my table frame was at very least, square, I just measured 58.125” from the end (which would correspond with the 8th hole in the rail, just like before). For the depth measurement, I used the 6 foot level from the other rail across the table. I shimmed it until it was level. Then I measured 1.75” down from the level. That intersection would be my first drilled and tapped hole for the second rail. I followed the same process on the second rail as I did on the first; constantly checking for level both directions. [/URL] 
I found this method to be much easier to handle with just one person than what was mentioned in the instructions. I don’t know if it was the correct way to do it, but I did manage to make everything level, parallel, and square. Using my 8 foot level, I noticed that the table frame had a crown in it. 
[URL=https://forum.bulltear.com/assets/migrated-images/CNC_20Table_255fdc55.jpg]
It would be a good idea for anyone welding up the frame on their table to keep checking this as they welded it up. I didn’t have the level at the time I was welding. In response, I think I will shim the water pan to keep it close to the level of the rails (which I know is correct), but I have complete faith that the avhc of the z axis will keep everything in line.
OK… major hurdle of the rails COMPLETE!
