Pumkin Chunkin at Rowan
 

A group of us got together and built the worlds first pumkin ballista for Rowan's pumkin chunkin competition. The event was well setup with Monster energy drinks there, a live band, free food and t-shirts.

Rowan University Pumkin Chunkin 2009

The ballista was built using 2 leaf springs off of an f-150, and we designed and welded together a frame from mild steel bar stock. The springs were pulled back using a come-along, and fired with a quick release we built, modeled after a pelican hook. We calculated that when pulled back to firing position the springs were at about 1400 lbf.

Im the person in the video who cranks, fires, and shoulder stocks it.

We won first place and $100 to go to the bar!

awesome!

hahahaha siiiiick

so, you still have this? :)

i like the mxc style at the end :lol:

Yes we still have it, its getting disassembled for storage until spring when there is a melon propelling event

looks pretty sweet...........need to get some stiffer springs

Nice work!

- Justin

looks sicks, why no make a giant potato cannon for pumpkins???

That's badass!!!

Rules were no compressed air, surgical tuning, or explosives.

well that just about kills all the fun lol
but thats still bad @$$

i think you'd get more force if you turned the springs the other way....and used a cam on the end like a compound bow...