how to easy build a ballista

How to Build a Ballista. If you like medieval weaponry capable of flinging arrows through the air, try building your own ballista. A ballista consists of a frame, a launch ramp with a slide, and a tensioned string. You can build all of these components with popsicle sticks, thread, and other basic supplies. Add a launch pin to create a small ballista...

November 20, 2019