UPDATE: v10 file is an updated version...have not tested it but it is based off the v8 file so should work fine. v10 file has support built in so no need to add support with your slicer. v10 may or may not have any real benefits over v8. M3 nuts and bolts are what both are set up for.
This mount fits the e3dv6 on to the MM2 and clamps it into place. It is a direct replacement for the factory design. Works with the aluminum piece to create a very ridged mount. Mine fit very snug...you may want to scale up or down a little to get yours to fit best...mine worked well as is with a little coaxing. I will mostly likely continue to refine it a little bit...but should work for you as is with minimal brain damage.
Make it as heavy duty as you can :)