Working Balistic Knife - Call of duty Black ops

thingiverse

This is my first project involving mechanical components, but fortunately everything worked out in the end. The Ballistic Knife is a Special secondary weapon that appears in Call of Duty: Black Ops, Call of Duty: Black Ops II, Call of Duty: Black Ops: Declassified, Call of Duty Online and Call of Duty: Black Ops III. The Ballistic Knife is a secondary weapon. It can deliver a one-hit kill when fired as well as when used for close combat. A ballistic knife is a type of knife with a detachable blade that can be ejected to a distance of several yards by pressing a trigger or operating a lever or switch on the handle. Spring-powered ballistic knives briefly gained notoriety in the United States in the mid-1980s after commercial examples were marketed and sold in the United States and other Western countries. This model is divided into several parts to facilitate easy printing. To make the model work, you will need 3 springs, 2 compression springs, and 1 torsion spring. The blade is divided into two pieces so that it can be printed flat on the printer. The case, where the bigger compression spring goes, is also divided into two pieces, and orientation is crucial when printing it. The other two parts are relatively easy to print. I decided to design this model as a challenge involving mechanical components because I spend a lot of time playing Call of Duty and using this weapon. Steps to build it: 1. Print all the files. The blade needs to be printed twice. 2. Locate the springs, the compression spring and torsion spring should be small in size; you will see their dimensions when printing the files. In my case, I used a spring from a pen for the button. 3. Before gluing the pieces of the blade case together, I recommend attaching the trigger using a piece of filament, a strip of tin or similar material and going through the torsion spring. Once this is attached, you can put the button with the smaller spring in place. Now that everything is set up, glue the other part of the blade case. 4. Finally, insert the bigger spring into the blade case and then the blade itself. When you hear a little click or see it move, your weapon is loaded, so be careful where you point it. 5. If you want to add an extra safety feature, you can create a security pin using a piece of tin or similar material.