Build a Marshmallow Cannon that shoots a marshmallow around 50ft in the air,

Step 1: Materials

Stuff to make it.

2ft of 1" PVC pipe
1ft of 2" PVC pipe
One 2" cap (For bottom of cannon)
A converter to go from 2" to 1½"
Another converter to go from 1½" to 1" (They don’t sell 2" to 1")
A small can of PVC cement
A small can of PVC primer (Not required, Helps it though)
A bottle of rubbing alcohol
A bag of 1" marshmallows (make sure not jumbo or they wont fit in barrel)
<p>My steel pipe air cannon will shoot way farther than this. </p>
I'm sorry but 50 ft isn't that much. I can make a paper dart that shoots almost 70 ft with lung power. using a hole to light it isn't very safe. buy a lantern sparker so then all your doing is twisting a knob at the end of the gun. potato gun instructables might say how.
In the video I got it to about 50ft. in some of my best launches I have got it to go about 2-300 ft. Good idea with the lantern sparker though. Ill probably get one and do that.
you should take another video with a better shot and don't say it shoot's 50ft cuz that's pathetic.
If you use a better ammo it will go MUCH farther (I'm guessing about 200ft or more) I guess it depends what you are shooting at, but hey your igniting alchohol so you probably not going to shoot it a someone (at least I hope NOT). And wouldn't the heat release toxic fumes!?!?!?!?!?
dude cars release toxic fumes.....just don't put your face next to the opening.
Cars release carbon-dioxide and water no worse than the human body (although maybe in larger amounts).<br/>But polyvinyl chloride (pvc) on the other hand is a synthetic hydrocarbon and like most polymers in that category it releases toxic fumes in this case its chlorobenzene ( <a rel="nofollow" href="http://en.wikipedia.org/wiki/Chlorobenzene">http://en.wikipedia.org/wiki/Chlorobenzene</a> ) which is used as a pesticide!!!! In other words its meant to kills things! If the heat is enough you could end up poisoning yourself! I mean come on guys just bui;d a pneumatic marshmellow gun.<br/>
cars release carbon monoxide. carbon monoxide is toxic.
I have had more than 200ft with a marshmallow before it just depends on the launch. When I made the video I did a test before I filmed the one you see and I had the marshmallow go around 2-250 feet. I filmed 3 other ones but that was the best one i got in the ones I filmed. I didn’t have time to wait for a perfect launch but eventually I’ll film another one that was better. I have got shot by it before (frozen marshmallow in it) and it didn’t hurt one bit but anything harder than that would hurt.
Nice paint job... No seriously, learn to use primer or get less clumsy... Cool gun though

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