I'm still here, thanks for the advice :-)

i dont want to build anything over kill, seems pointless when I see the most important factor being control and precision, it's not driving any force so I fail to see why stepper motors are the choice for so many plasma tables when they draw so much current regardless of work done, closed loop servo seems the way to go and I don't think they need to be very big.

be interested to know if people run servos direct drive or step them down with ratio to give more accuracy, I would like to reduce it to so that I have no backlash in the drive.

is there a go to liner rail with screw drive already built in for the X and y?

That was a question i wanted to know, why can you not pump the water down the drain?

And yes guys take it on board I pissed you all off, sorry :-)