I'm planning to build a homemade compound crossbow for quite a while now and recently watched this youtube video. So basically I want to try to build a crossbow like that. For the trigger mechanism and maybe even the guiding rails I might be abled to convince a friend to make them, he's in the metal working industry, but I think he won't be abled (or too lazy) to build me that cams and the holdings. So is there a place to buy just the cams+holdings and not a complete compound crossbow? Or do you think he (the guy in the video) "recycled" an old one? I'm pretty new to this stuff, but I really want to build something I can have fun with because I somehow hate just working on my desk job all day and not really "create" something if you know what I mean. However here is a more detailed pic:
p.s. I really hope someone can help me with those cams. =S
p.p.s. The "arms" are recycled ice hockey sticks. Seems to work nice though.