X-Acto retractable knife handle

THIS VERSION IS OUTDATED, THIS ONE WORKS BETTER https://makerworld.com/it/models/1123552#profileId-1122458Compact Hobby Knife with Pen-Like MechanismTired of losing hobby knife caps? This compact and innovative design features a pen-like mechanism that is safe, durable, and fun to use.Features:User-Friendly Design: Stable, with a easy to replace blade.Compact and Practical: A convenient alternative to traditional caps, keeping your knife secure and ready for use.Assembly Tips:Ensure the blade holder is inserted as shown in the fourth picture to keep the blade centered.Attach the rubber band to the blade holder as demonstrated in the last picture.Print the moving parts at 1,2mm layers for smoother action. The profile doesnt have this so slice it by yourslef. this version is not supported anymore since the new one is betterEnjoy a reliable, creative tool solution. Happy printing!