Attached is my work in progress aluminium Ox CNC authored in SolidWorks 2014. All Mark Beers parts files are now combined into 3D assemblies.
All the models are parametric so it's very easy to change the length & width to your own sizes. The two side plates have a distance constraints to adjust the width.
SolidWorks Ox assembly 2014-12-23
Aluminium OX, complete assembly, authored in SolidWorks 2014,