The gantry is bolted to two boxes clamped around the X axis rails. The floor and ceiling of these boxes house the angle-aluminum rollerblade bearing trucks that will contact the rails of the X.
You'll notice that in these photos, the "inside" wall of the boxes has been cut away. Patrick suggested that the structure was plenty strong enough, and trimming the inside pieces would enable me to attach the actual cutting table to the X rails later, enhancing ridgidity.
Now it's time to tackle assembling the X rails..... |