Hey, still working on that fully automatic bamboo weapon? Probably easier said than done but have an idea on how you might be able to pull it off 😎 Tried a very large crossbow with a ammunition belt ( with hooks on the side to pull the strings between ammunition slots ) that's rotating wheel powered? ( 2 rotating wheels for belt placement like that of a chainsaw ) Hooks would lower as it makes its way behind the crossbow creating a shooting mechanism that resets itself with every hook stoppage which would likewise lower as the ammunition reloads again for each new shot. ( Spring loaded {also powered by the hooks to avoid bullet traffic }) The hooks would need to be very durable and smooth though to stop the crossbow string from breaking them but in theory it should work. Needless to say, the ammunition would need to be bullet sized.or even marble sized for a larger ammunition capacity. 😅 Just an idea you might be able to try.