As a precursor to that project, I wanted to get a little experience with pneumatic cannons and the like. To that end, I picked up the plans to build the "Ultra Magnum Marshmallow Gun" from here.
The plans are good, I found only a single real issue and that was in the material list. I went ahead and emailed the creator about it for any of you that buy the plans later. It only took me about an hour to put everything together. Honestly, it took me more time to find all the plumbing parts at the local Home Depot. The only thing they didn't have was a stem fill valve and the tire shop at Walmart just gave me a couple out of the goodness of their hearts. Once you get all the pipe cut and glue it together you need to wait forever (24 hours) for the PVC cement to completely cure.
I can only say one thing about it: WOOHOO! It's a lot more fun than I expected. The power at 50 PSI is surprising. By the time I could test it, it was already dark outside so I didn't get to see the full range but the little mini-marshmallows it shoots were smacking into the wall quite loudly from twenty feet. Tomorrow morning I'll put it though it's paces at higher pressures and see the real range.
Expect to see an update in the next day or so with maybe even a video once I get it all painted up. In the meantime, go buy the plans and build one yourself :)
I can only say one thing about it: WOOHOO! It's a lot more fun than I expected. The power at 50 PSI is surprising. By the time I could test it, it was already dark outside so I didn't get to see the full range but the little mini-marshmallows it shoots were smacking into the wall quite loudly from twenty feet. Tomorrow morning I'll put it though it's paces at higher pressures and see the real range.
Expect to see an update in the next day or so with maybe even a video once I get it all painted up. In the meantime, go buy the plans and build one yourself :)
