Thread:Robdavies1775/@comment-4740380-20120107171147

Just curious how you would make the scissor jack or what you would use to make it. I had a pretty good design using the same principles of a spring loaded gear and gear rack but it was a little clunky in the blade. I like the scissor design because it's more reliable for stabbing purposes. Less chance for the gear to slip off the rack.  