vapor trail arrowheads

thingiverse

This is an arrowhead designed to make a "vapor trail" and whistle. fill it with liquid, water works but alcohol or ethanol works better, shoot it on a sunny day. air pressure forces the liquid from the tank up through holes in the fins, as it exits it sprays out into a fine mist. once the tank starts to empty the inlet holes with create a loud whistle. CAUTION- these are heavy so please be careful shooting these with a compound bow the tubes inside are small in diameter so you will likely need to drill them out. this are not accurate so don't expect to hit anything, i shoot these into an open field. i am not responsible for any injuries or fires VIDEO HERE - https://www.reddit.com/r/3Dprinting/comments/u2nq3v/my_vapor_trail_arrowheads_part_1_and_2_air/?utm_source=share&utm_medium=web2x&context=3