box with 4-link hinged lid

myminifactory

I'm still struggling to come up with a name for this contraption, but as its title suggests, the lid's hinge mechanism relies on a 4-link design that I originally developed years ago for a car hood. To fit this design into a box, I simply needed to scale down the dimensions by about 10 percent - and voila! Assembly Instructions: First, place the hinge mount piece inside the top of the box on its ledge, right up against the end with the two slots, with the rounded corner pointing towards the middle of the box. Next, fit the hinge arms with 3mm filament or a similar material. The longer arms go into the lower mounting holes and the shorter ones in the top holes. You'll notice that each arm has an extra rounded piece at its end; these must point downwards at the box's mounting end and upwards at the lid. The images should give you a good sense of how everything fits together.