Stunt Knife with retractable Blade A stunt knife as used in movies, when pressure is applied to the tip, the blade retracts into the handle. Perfect as a film prop or as part of a costume . You need 2 short rubber bands 16mm and six 2x8mm screws . The exact components are linked below. Hook the rubber bands into the blade as shown in the picture. Place the screws in the handle and hook the blade with the rubber bands into the screws. Close the two halves, making sure that the rubber band is not pinched . The blade should then be able to be pushed in without jamming. General printing tips for beginners: - Do not use weak filaments like silk filament for mechanically stressed parts - For better adhesion of the build plate, use adhesive sprays like this one. - All my prints are tested before uploading, use my provided print profiles and the linked parts to achieve the same results Boost Me If you like my work and want to support me, a Boost is greatly appreciated!