"DeusEx"

[mocha]

I can't pretend I understand the reasons, but I do agree with the conclusion! I'll stick with using a "traditional" Z axis if only because of time and cost restraints. :-)

Apart from the length of the Z ball screws, 400? 450?? I don't think I need to worry about the Z just yet. Still got other areas to sort in the next three weeks!

[JAZZCNC]

Mocha sorry didn't see this before but Doing it this way means the X axis is unsupported from under neath and could flex.?

I would still do it with this configuration but lift the whole thing up and sit it on the X axis bearings, basicly making a rectangle box section frame.
Like I say Spindel supported on four sides would be better but I see why you have done it this way to keep the width down, thou I think the extra strength would be worth the width loss.!