Y axis design

[GeorgeD]

99% of CNC machines I've seen have the motor affixed to the top of the Y axis,I've never liked the moto in this position because with the spindle motor also at the front of the Y axis I tend to believe that weight foward forces the front of the Z axis somewhat ie tilt,well thats my reckoning and I'm sticking to it.


So my CNC when built,I've decided to place the Y axis motor at the back low down to even out that weight on the Z axis and it will be belt driven.

Here's a crude paintshop pic I have done to show how it will be placed...Substitute the Z in the pic as the Y is wongly placed if you think its going to be a problem? could the more qualified let me know please.