I redesigned the back brace & decided to use dovetail joints between them since the tongue & groove style joint did not print symmetrical. This is what the 10" version looks like. I plan to start printing the parts today. I made 2 versions of the inside brace. The other version only has the 4 holes at the joints, in case I do not need the extra support.
Y-Axis10inch_BackPlateAssembly_rev32.JPG