Hello all,
One more thread about which stepper package to get...

OK, I am building a machine that I am going to upgrade a bit as time passes.

Initially I will running 2, 4' 1/2-10 acme leads on the x axis, 2' 1/2-10 acme on the y axis, and 9" 1/2-10 acme on the z. Spindle ti start will be a Porter Cable 690. Construction is all alluminum, 80/20 and plate, Thomson Accuglide 25 rails on all axis.

Eventually I will be getting ball screws for all axis to better fit the rail lengths I have. 6' x axis, 42" y axis with the same 6" travel on the z. And, dare to dream, a good machine spindle.

I am looking for a "all in 1" kit that will be able to grow with the machine as I upgrade. I want to mill alluminum and woods. I like the looks of the G540 as a driver but am not sure about how big the steppers need to be. Budget as allways is a concideration but I am willing to spend a little more for somthing I will get some mileage out of.

Any help making up my mind before my head explodes would be greatly appreciated....

Thanks
DC