Instructables
confetti gun 003.jpg
confetti gun 001.jpg
This is a very simple PVC pipe confetti launcher. It's an easy project even if you've never worked with PVC piping before,
and it's great for parties. In total, it cost me about 15$ CAD. 
 
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Step 1: Materials

Picture of Materials
All the PVC pipe I used in this project was sch 40. it must be sch 40 to withstand the pressure, so make sure to check before buying your tubing.

6" of 1" pipe
2 2" lengths of 1/2" pipe
2 1" couplers
2 1" to 1/2" reducing bushing
1 1/2" slip ball valve
1 1" cap

Epoxy
A drill
a popped bike tube
PVC cement
PVC primer

After using my confetti launcher several times, I discovered that if the 1" to 1/2" reducing bushing is switched for a longer piece of 1/2" tube it fires the confetti much farther, but does not disperse it as much. This is a good option if you want more hang time with the confetti. I recommend 4 to 5 inches of 1/2" pipe for this approach.   

Step 2: Dry fitting

Picture of Dry fitting
Dry fit all your pieces together before you cement them. This picture shows the correct way to fit them. It's just a precaution to make sure it all fits and you know the proper layout.

Step 3: Priming and Cementing

Picture of Priming and Cementing
You may now prime and cement the pieces together. The picture shows the pieces after priming and cementing. Make sure not to prime or cement the cap yet! 

Step 4: Inserting the Valve

In this step, take a popped bike tube and cut out the valve. The type of valve is not particularly important because they are all designed to hold large amounts of pressure; Just make sure you have the right pump. Next, drill a hole big enough for the valve in the top of the 1" cap. If the valve fits in the hole, you're good to go.
Masher0073 months ago

Danger: See link: This is not spam, but a warning. PVC will fail suddenly after a while. This was band member that hurt badly by a T-Shirt launcher explosion.

See the pictures and never use PVC to hold air, Please.

https://fundrazr.com/campaigns/1Zs3c
..

amarsar (author) 4 years ago
Im sorry i haven't posted a video of it firing yet, but i'll get to it. What are pop-its? and, im not sure if it can be remotely activated, but if you can find a way to turn the ball valve remotely than i guess yes.
you could use a solenoid sprinkler valve like this guy did.
http://www.instructables.com/id/T-shirt-Cannon/
amarsar (author)  amarsar4 years ago
oh yeah, and bubba J, did it work well?
StiltGuyJoe4 years ago
Who has two thumbs and plans on making one of these? This guy.
How much is $20 CND in Php? Please be under php 300
amarsar (author)  nutsandbolts_644 years ago
Sorry, it's about 800 PHP
any way to posibly hook it up to a tripwire or something to make it a booby trap?
i tryed and filled it with pop-its
diabloroker4 years ago
May I see a video of this please?
nice