Here it is. It has been gathering dust as you can imagine! Tiny, I know, but I'll upgrade to a bigger one later.
By the way, I couldn't come up with a way of triangulating the gantry from the outside using one of the Y-axis rails, so I decided I'd continue with the piece of timber between the rails as the final design. I hope it works. I'm glad all those issues were ironed out before I started construction though.
Thanks for all you input, guys.
Looking forward to start building.