MakerGear Simplified Extruder Block with Quick Release

After recently putting together a MakerGear Prusa Mendel and having to unscrew 4 bolts countless times to clear jams, I decided one of the first parts I would design would be a quick-release mechanism for the filament drive. It's very similar to the current MakerGear extruder design with the exception that the bearing block is on a hinge with two bolts to hold it in. Now, when I need to clear a jam or change filament, I pull the screws close and unscrew the nut by hand, lift them over the top, a