Re: moving gantry , where to put the tracks
That's a really great frame, should make a very sturdy machine. Can you flip it upside down and use the middle supports to mount rails or bearings on, and make it a sliding table instead of gantry design? This will be a very rigid machine then and with a decent spindle, you'll be able to machine aluminium.
I'd also be using fully supported rails and bearings instead of the free hanging round rails.
cheers, Ian
It's rumoured that everytime someone buys a TB6560 based board, an engineer cries!