Automatic front folding knife

If you have always wanted to know how automatic knives work, then you can print my front folding knife model.
This is a very interesting mechanism.
I tried to make it so that I didn't have to use a lot of third-party stuff. The whole model can be made from materials that you use when printing on your 3D printer. The only thing you may need is 6 bolts or duct tape and if you don't have flexible, stretchy filament then you will need rubber bands and/or springs.