Somthing i've noticed while researching different CNC milling/routing machines is that there are so many combinations of possible axis movement.
The 'traditional' configuration seems to be where the table moves in x and y and the cutter moves in the z axis, but I have also seen machines where the table only moves on the y axis and the spindle motor moves X and Z. In addition to this i've even seen machines where the spindle motor moves X,Y and Z and the metal being machined doesnt move at all.
What i'm trying to establish here is what is the best method to use ? As i'm building a CNC mill from scratch I have the choice to use any of theese options so its just a case of what is best.
What are peoples opinions on this ?