I'd like to upgrade the electronics on my 6040, which is a slightly older version of the omnio X6-1500GT (so I will also be adding limit switches). I think I've narrowed it down to two options, but I'm not sure which would be best.
Option 1: Leadshine MX3660 and a UC400ETH.
Option 2: Gecko G540 and UC400ETH.
I'm using Mach 3 now, but might try/switch to UCCNC.
Eventually, I'll probably buy the NEMA 23 steppers that CNC Router Parts sells and a few years later upgrade to their 2'x4' CRP2448 kit.