Thanks for a peek at that bearing design. It looks good and simple. I like simple and good.
I have had this 4" zinc plated flat bar laying around for a long time. At least I have managed to cut it into shorter pieces now. I wanted to see how straight I could get it mounted, so I put one side together last night. It came out great. Its as straight as my T-square in both directions. I will use it for starters. I should have the frame complete this evening and will add some more photo's then. It feels good to start building it already, rather than just spending money and amassing parts.
After lifting the frame and track assembly for just one side, I am starting to think that this thing may weigh nearly as much as some of these smaller MDF rigs.
MDF and I do NOT see eye to eye. If thats all there was to cut in the world, My tablesaw would be on the curb.