After nearly 18 months, I've finally resumed work on my DIY router. And I'm happy to say that it's nearing the point of hooking up the steppers & electronics. I had originally purchased a 4-axis/425 oz package from Xylotex for this build (FYI - I'm using 1/2-10 single start ACME screws, which I plan to upgrade to multi-starts on X & Y axis). Now I'm rethinking the setup due to all of the "advances" in technology - I want to switch over to Gecko drives. But I need some advice on the most cost-effective way to convert. Here's how I see it...
I could keep the steppers (425 oz/5.0 A bipolar parallel/ 2.1 mH inductance) & go with G203Vs (4 each: $600), a suitable breakout board (not sure which or how much), and larger power supply (KL-600-48 48V/12.5A $139.95). That's going to be at least $740, but would likely get the best performance out of the steppers.
The alternative would be to go with the G540 ($299), a better power supply (KL-600-48 48V/12.5A $139.95), and possibly four better-matched steppers (KL23H284-35-4B/387 oz-in @ $49 each), which comes out to be ~$640.
So... Which configuration is "best"? Will the G540 with matched steppers perform comparably to the G203Vs? Is there a less-expensive, "middle ground" configuration that I'm missing? Thoughts??? Help?!?