Thor, or should that be Zeus?

[Chaz]

I was actually referring to the X. At the bottom you have two linear rails bolted to an enormous structure, most of which is superfluous, you only really need the bit under the gantry.
If you fit the linear blocks to the bit under the gantry and the rails to the table then the support will always be under the tool.
You lose an unnecessary overhang.

Ah, ok, understood.

I'm just trying to find the reference design / document that I used. I did note that this is not final but the shape (with more support) is basically a triangle.

I am however more than happy to make changes based on experience, one of the reasons why I have started this thread.