The front door of the command center is the only part of the command center that actually "works" when it lifts off. By that I mean it is the only part that doesn't "clip" into the body or disappear/appear from nowhere. Originally, I wanted the option to go back and add a "partsforming" function to the command center by swapping the straight leg assemblies with an extra set of ones that are curved in for lift off. A functioning ramp was really all that survived of the liftoff idea, as the legs simply "clipped" into the body too far.
Instead of a conventional hinge, I decided to use two small sections of a small brass rod that go through the door posts. I dremeled out some small notches, and super glued the rods into place.