Making a Scrapyard Spring Powered CROSSBOW! 

Thanks for sharing this crossbow.

Great idea 👍

It looks cool, but the swinging steel arms are too heavy and steal most of the energy. Make them from alu, that should still be strong enough and way lighter. Also you could taper the arms to the end, which will also reduce weight and increase performance. Further more I would design the whole crossbow in such a way that at the zero position (so not cocked) there is already some tension on the springs. This would require a shorter string. The flat spring to hold down the bolts I would not make from alu - use 2 mm steel for this and that will work much better. Regarding the bolts - when you have them like that and the bolt hits something hard, the nail will be pushed into the wood and eventually split it. Rather use a thinker piece of steel (ideally hardened, but for testing it doesn't matter) like a 10 mm rod and hollow that out with an 8 mm hole (requires a lathe) 10 mm or so deep and then use a 8 mm shaft and stick it in there. Or use the 10 mm steel piece and make the last 10 mm of it thinner to 8 mm thickness (just requires a drill and a file) and then put an 10 mm alu or steel pipe over it. 7:05 really nice garden :)

Отличная работа.

I suggest you build a reverse compound crossbow aided by welding clamps. I made one and it's very powerful ;)

I had a crossbow idea similar to this one but using one tension spring connecting the arms. Your design is probably a little more powerful though

Your arrow is too heavy and thick. Just made it lighter and use a different kind of tip. Make those springs longer, too, and will have way more power.

Power lvl = 000.1

This is so badass. Did you use plans of any sort?

Your springs are too long making them not tensioned enough when you cock the string back. Cut about 1/3 of the length off of them, or shorten your string by about 1/3 and try it.

What kind of springs did you use

less power than my blowing darts

Nice try, u still need alot of work to do bout the spring for more power to kill

Zna Productions anybody?

Essa besteira tem uma precisão absurda, atira para tudo quanto é lado, menos no alvo.😂