OK guys here we go.

The MD001 should arrive in a few days and I need to start thinking about the servo's drives. I have been really pleased with the DMM Tech AC servo's and I would like to go with them again.

The motors are rated at 3000 RPM and I would like to go with a 2 to 1 gear ratio on the X and Y and maybe 3 or 4 to 1 on the Z if it is needed.

Ball Screws would be from Linearmotinbearings on eBay.
items in linearmotionbearings store on eBay!
RM1605 (16mm) on X and Y
RM2005 (20mm) on the Z
Lead = 5... I assume that is 5mm or .20" per revolution?

Please correct my math if it is wrong.

I am thinking of using:

400W AC brushless servo motor (60EM-DHT-36)
Max 3000rpm
Rated torque: 1.27Nm(179 oz-in)
Peak torque: 3.6 Nm(507.6 oz-in)
Motor

At a 2:1 belt reduction that = 358 oz-in Rated and 1015 oz-in Peak at 1500 RPM. 1500 RPM x .20" = 300ipm

OR

Direct drive
900 Watt brushless AC Servo motor, NEMA34
Max:1080 rpm
Rated torque: 2.9 Nm(409 Oz-in)
Peak torque: 7.2Nm(1015 Oz-in)

1000 rpm x .20" = 200ipm

What do you think?

Edit:
My current machine uses the 300 watt motors at a 2:1 reduction. I can get up to 188ipm in rapids and that is plenty for me and I think it would be fine for the larger table of the MD001.