Unbreakable Bar Clamp (retrofittable)

##Has the bar clamp on your Reprap snapped due to overtightening?
Stop super-gluing it... replace it with this new, *retrofittable* bar clamp that doesn't require you to unthread all the nuts/washers/pulleys!

(you should replace all 4 clamps, or you might have a hard time levelling out your bed)

If used in the construction of new Repraps, you won't need to pre-thread the nuts/washers/old bar clamps onto the threaded rod... saving you time ;)

###Instructions (pretty self evident! but a