I found this product some time after I milled my bearing blocks. I might have put money towards this set.
https://www.kidchaosconcepts.com/product-page/billet-bearing-block-for-plasma-table
I have a Bridgeport clone. So manually.... I think the bearing block could be made on just a drill press (with a good vise) and a vertical band saw. You would want to start with a 1" x 2.5" extruded aluminum bar better than 12" in length. Cutting eight 1.375 blocks and proceed from there.
Just wanted to say thanks again for the drawings! My table is just waiting for me to settle on a controller. Have included pics of alternatives to the original design. Notice the gantry Leveling screw in lieu of matched plates on the Y trolly. Also the simple post style belt mounts....saw this...
Well here are examples of the parts from above drawings. Was wondering if a drawing was done for the x axis trolley? Also note the 2.5" tube jigged up for welding the ends on.