This is a mini folding knife equipped with replaceable blades. A spare knife is printed on every flat surface in the workshop. When reloading a new blade, just hook your thumb into the round hole on the blade holder, and you can easily slide the blade back and forth to replace it.

Please print the knife handle at the angle shown in the diagram. Although the printing speed is a bit slower, this way, when applying cutting force, the layers of material won't be pried open and separated directly.