About this 3D model

- Optimized spring strength: The previous version of the blade often couldn't bounce out and had problems after using it for a period of time. This version has optimized this issue. Optimized spring strength: The previous version of the blade often couldn't bounce out and had problems after using it for a period of time. This version has optimized this issue. - Added a quirky blade. Added a quirky blade. *No hardware required. No hardware required. *It is recommended to use high-strength materials such as PETG or ABS for printing. It is recommended to use high-strength materials such as PETG or ABS for printing. *In addition, please make sure to remove burrs and clean the 90 ° angle, especially the blade. In addition, please make sure to remove burrs and clean the 90 ° angle, especially the blade.