Nice layout Gav, I would also fit slides the next time around rather than vee wheel.
My only comment would be on the Y axis shaft diameter - it looks a bit wee - I'd be inclined to up it to about 12 to 15mm alloy tube with steel ferrules at 6.35mm - or change to 10mm steel shafting. At 6mm, I think it would whip or cause some compliance in the shaft which would lead to the dreaded backlash.
After the pain I've had over the past week, I'd be swapping out those sexy black flexible shaft couplers for solid ones as well
Is that a toy laser you've fitted
Nice work - I'm guessing it will end up in a box at some point?
What size/type of slides did you use BTW ?
Cheers
Neil