How to Make a PVC Rocket Cannon
Intro: How to Make a PVC Rocket Cannon
The above video demonstrates how to fire a rocket under the power of a flammable aerosol. Hairspray or a flammable spray deodorant are the fuels of choice. The total cost of this project assuming the tools needed are already available is about $25. For that price you can make 4 rockets for the launcher, as the foam sleeping pad that they are made of is large enough to make multiples.
Parts & Tools:
1. 18" x 3" Pressure Rated PVC Pipe
2. 3" Pressure Rated PVC End Cap
3. Piezoelectric BBQ Igniter or Flint & Steel Lantern Striker (Available at hardware or sporting goods stores)
4. 2 Self Tapping Screws if using a BBQ Ignitor
5. Foam Sleeping Pad
6. 2 Liter Soda Bottle
7. Duct or Packaging Tape
8. Hot Glue
9. Drill & Bits
10. PVC Primer & Cement
Parts & Tools:
1. 18" x 3" Pressure Rated PVC Pipe
2. 3" Pressure Rated PVC End Cap
3. Piezoelectric BBQ Igniter or Flint & Steel Lantern Striker (Available at hardware or sporting goods stores)
4. 2 Self Tapping Screws if using a BBQ Ignitor
5. Foam Sleeping Pad
6. 2 Liter Soda Bottle
7. Duct or Packaging Tape
8. Hot Glue
9. Drill & Bits
10. PVC Primer & Cement
37 Comments
dariostar 10 years ago
http://youtu.be/hnldGEFoaCs
NightHawkInLight 10 years ago
moses paul 9 years ago
Pandalover888 8 years ago
AWESOME!! it works perfectly.
What is the build up in the bottom?
Its like a syrupy hairspray liquid.
JohnD316 8 years ago
Great afternoon project with the grandkids. Even if it hits someone it likely won't hurt and is soft enough to maybe catch on the way down.
demon_pigeon 8 years ago
Still can't get past the first step.
opticalfx 9 years ago
Would I be able to replace the hairspray with starter fluid?
opticalfx 9 years ago
So I've got it built and have tried several different fuels with no luck. I've even tried straight Butane and nothing. Tried switching over and using a fuse from some fireworks with no luck. I've tried blowing down the tube to increase air in the mixture and nothing. What is it that I am doing wrong?
NightHawkInLight 9 years ago
roballoba 10 years ago
So cool!!! your instructables are getting my brain gears turning!!! OH MAN. OH MAN! This is gonna be fun!!!! you make nerf look like childs play!
girdap37 11 years ago
vangard1994 11 years ago
giike3 11 years ago
misterlemois 11 years ago
I already build the launcher and I'm now firing coke bottles (2,5l) and it's awesome, I really want to build the rocket now.
Michael_Bell 11 years ago
jliang1 11 years ago
I think this is an amazing implementation of basic physics.
I have a question about the fuel, however. What is it that oxidizes inside the hairspray? Is there a specific chemical that I should look for? I currently have Petroleum-infused Silicon Oil, but I'm not sure if that will produce the gas pressure needed for liftoff. I also don't want to buy the 'wrong' hairspray, persae, and waste $15 on a product nobody in our family uses.
Thanks in advance!
NightHawkInLight 11 years ago
thebrimac 12 years ago
NightHawkInLight 12 years ago
lonesoulsurfer 12 years ago
Great 'ible - built one with my son on the weekend and had a blast! (excuse the pun). Have a look at my video below. I had some trouble initially as the hair spray wouldn't ignite. I found that if I blew down the pipe after I sprayed that helped.
Keep up the great work.