Slide Lock Utility Knife

As a knife lover, I have been looking for the perfect knife model ever since I got into 3D printing. Unfortunately, there was no model that met my standards, and eventually I started studying Fusion 360… Introducing my simple, safe, and useful Utility knife! ✅ Features:2-step length adjustment for various tasksEasy assembly without toolsSafe and simple sliding button locking system✴ Required:Utility bladeSpring diameter 6mm, length 10~15mmor Spring from an unused ballpoint pen (I used 4x24mm spr