Lockable Heart Shape Box

So here's it is! Large format, super easy to print, support free and easy to assemble!All the parts are support free, but the key is...not. So i have made two files: One pre-supported (in which a support is already included, just break it apart at the end of the print), and the other one unsupported. (If you have trouble with my pre-supported file, try printing the one unsupported and add slicer support for the small tip of the key).All the other files are 100% support free.You will need four M3x6mm screws. SETTINGS:The box is made to be printed with a 0.3 layer height for faster prints. Also, because of his shape, the box is very strong and you don't need more than 2 walls with 10% infill. You can change those settings if you want, but mine was printed this way and is really strong.For the other parts, go with your preferred layer height, mine was 0.2 almost everywhere.For the parts with screws (backplate and mechanism base) is suggest 4 walls to ensure the screws won't br