Which kit would you recommend?

[rnr107]

I'm thinking Nema23 steppers at about 2 - 3Nm will be OK.
Ian

Hi Ian,
For the X and Y 3Nm should be fine on ballscrews but on ACME you may need more,for the Z I'd go with something a bit bigger. maybe a NEMA34 4.5Nm...

For the Kit, I'd go to Zapp, the guys there actually know what they are talking about... If you give them a call and tell them that you want to convert a X2 they will be able to tell you what you need (Motors, drivers, BOB...)

Also, If you can afford it, change the X&Y lead screws to Ballscrews. It makes a hell lot of difference. No backlash!
Backlash is OK on Manual mill, but on CNC it is a killer!

Laurent