Alas, I lack skills or time to do that now. But then, a dream of making a shooting one is nested in my head from childhood - maybe someday... Thank you.
It's not so hard as supose to be. You saw mine, it was my first attempt in crossbows ever. Here is very helpful thread about trigger mechanisms which I started building from. [link] <-- I chose that in #4 post and modified it a little.
is that based off of some sort of common design? i feel like i've seen that design before... it looks almost Da Vinci-esque, but i'm pretty sure he never made a crossbow like that
Maybe something like this has been seen in Arcanum, on the second thought. Don't exactly remember what crossbobws from the game did look like - if there were any at all...