I love the hinged lid risers, but the lid bounces around a lot and the hinge awkwardly bears the load. This hinge stop rests against the back of the printer when the lid is open and reduces bouncing and the load on the hinges. This simply adds the blue part in the photos to the black hinge. If you have already printed the original hinge, you can print out the stop by itself and glue it onto the hinge with super glue. This is what I did for the photos. I decided to incorporate it into the left hinge so it can be printed all as one part, after the fact.