Linkage Crate - Print-in-place lever-opening box! (Patreon)

Hey there wonderful people! 😍 
Have I used levers in designs before?  This may be the first one!  Levers are really useful for controlling force, but here it's being used to magnify motion.  Push down the panel at the front of the box a little way and the lid opens far further thanks to the magic of physics!

 
Like it says in the title, this is a print-in-place design, so all those moving parts are formed already assembled.   Print it, take it off the printer, and it magically works!  Except, my endless prototypes didn't, they all broke instead!  Yep, the concept was sound from the start, but being resilient to printing issues without snapping all the internal parts was another matter!


My workbench became a graveyard of broken plastic boxes, but each taught me something new about failure points.  Not only did the print need to be resilient to printing issues, but the parts needed to be tough enough to handle being removed from the bed.  
Hinges became larger and stronger, clearances were refined to prevent twisting and the first layer became much more resistant to elephant footing.  And by the final version (so far!) it's pretty solid!


But most important of all... it's a lot of fun to just open and close continuously :D  
Creative Printer supporters will find this one under Linkage Crate on Dropbox!  
Have fun! 😁