Hi John, great reply.
I'm still trying to take it all in; I was planning to have about 100mm worth of travel on the z axis. I don’t think I’m going to need allot of speed on the z axis as most of what I want to do is in really thin wood like 3mm ply and stuff so when I design parts to be cut I will use the minimum amount of Z rais I have to as it moves to each job and so on.

I’m just trying to put this into context with what you’ve said above, I will be using the MSD range of drivers on all 3 axis's from zap/mcp. I really can’t see that I need a 400+ oz-in motor and a matching driver for such a small axis that’s not or shouldn’t really see too much in terms of cutting forces, I know I’m properly missing the point but that’s not intentional ? :confused: