Well it's been a while since i last update due to other commitments but i've finally mounted Jonathan rotating ball nuts (oooooeerrrrr missus!), built the 70v PSU with 24v safety system and got it moving with 860 drivers and 4Nm steppers. Not moved it using Mach3 yet but only used the pendent that came with the BOB.
Just working out the idea of a pneumaticaly controled table height if/when the pneumatics arrive. That's what my recent wanted post is for