This is a removable front-door hinge for a QIDI Tech 1 Printer. I believe that it would also work for equivalent MakerBot printers, but that's not verified. Feel free to modify it to suite your needs on other printers.

This hinge allows the front door to swing freely, but then also be removed completely when full access to the print bed is required. I didn't like holding the door up with my head when working inside the printer. Being able to simply remove it seemed like a great improvement. It mounts in the existing holes in the door and frame, so no modifications are required. You will need a four extra hex nuts to attach the hinge to the door.

I also added a magnetic stop to the bottom of the door and can upload that design if anyone wants it.