(snip)
MT: No idea. The springs are 40kg each. Heavy weight limbs though. Can put an arrow through your chest though. Not all the way through,
but it got some punch indeed. There are 2 joints with springs on each side, to make sure it bends like a real bow. Believe it or not, I pulled that
one ouf of my...arm. On the fly, no plans, just the idea. Worked out well. Click the video, it shows our lil shooting ^^
So... we need to know extension to give a force of 40 x g , the actual extention at full draw, the angle of the spring at full draw and the various lenghts of string and limb to work through the turning moments. Sounds like an interesting engineering problem

Yours,
Miranda.