Ultimate X-carriage for Prusa Mendel Iteration 2

This is my design of an x-carriage. I was tired of trying to add cumbersome and oftentimes weak attachments to my existing x-carriage for the addition of fans, lights, or servos (for auto bed leveling). This design incorporates mounts for object cooling fans, hot-end cooling fan, lights, auto bed level servo, x-axis belt tensioner, DB9 solder cup connector (for quick connect of wiring to carriage)(I have now added a file for the main structure that voids the DB9 cutout and adds a relief for