SO! This is a crossbow trigger I came up with, it hasn't been built yet but it's to be constructed from multiplex plywood. Preferably 18mm but it might have to be a bit thicker, simply because it may not be strong enough and/or it mightn't hold the string at two separate points of contact. But the physics seem ok and i plan on using it in my next crossbow build. i might have to deepen the notches for the string simply to reduce risk of misfire. I'm referring to the round piece of course, the trigger wont be as thick, simply for comfort but that can be changed also. So for the time being it's still a bit of a work in progress but at this stage I thought it time to display a diagram or two. Also on another note, due to the shape the round, rolling piece, the fork will have to be relatively low, as this is a rubber-powered build.