Improved Slider for Utility Knife Case

https://makerworld.com/en/models/837389-simple-cutter-knife-18mm?designId=837389-simple-cutter-knife-18mm#profileId-782926I redesigned the slider because the original one hurt my thumb and would easily fall out when unscrewed. The new slider has a rounded hexagonal shape, and I added a small stopper to indicate the point where it might detach.To assemble it, press the slider down while turning it in like a screw. This helps the stopper pass the edge and lock securely. It might feel a bit tight the first time, but after that, it goes in smoothly. The end section next to the slider now aligns perfectly with the body for a cleaner, more precise fit.