Update:

I'm up to 3m/min rapid speed on X and Y, it will go a lot faster but the stand shakes and rocks. Got index homing, f-error < 0.03mm reliably, still not quite tuned but its working ok. I've got no idea on feeds and speeds, I keep stalling the 24k rpm spindle with larger end mills or gumming up smaller end mills.

Got the counter weight system in place now, went a bit over the top with the chain and mounts:

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Which has meant I've finally got the Z-axis servo installed.

I think the next step is an enclosure, i'm using some Dexter like shower curtains at the moment chips are still going everywhere.

I'll get some designs done and see what you guys think