1st Build, Second machine

[Jonathan]

Jonathan are talking to m_c or me on the rail spacing issue?

I was talking in general really. On the axis the Z-axis is attached to in particular (Y in your case), the further apart the bearings are the lower the force on each when cutting and (to a lesser extent) accelerating. If you take moments in the X-Z plane then it's pretty obvious why...

Also you what would you charge to mill the bracket we are talking about for me? Well back to working on the drawing

I'm not so sure what's required. I can let you know when you've done the drawing...