How to Make a Quad-Barrel Air Cannon

You've seen the demo, now learn how to make your very own semi-auto or full-auto R0M4 quad-barrel air cannon!

Welcome back recruit! Major Sergeant Private Major here again, ready to help you create your very own multi-barrel pneumatic launcher! I'll go over the version from the demo video, as well as several others that we've created so that anyone can build their own ROM4. No soldering or coding experience? No problem! We've included a design that uses simple buttons and wire nuts.

Join me.

*** DISCLAIMER ***: As mentioned in the video, PVC IS NOT DESIGNED TO HOLD PRESSURIZED AIR. When PVC fails, it fails catastrophically (ie. it explodes). This can cause serious injury or death. I do not claim that building a cannon like mine (even by following my directions exactly) will mean you are safe using it. THERE IS NO WAY TO MAKE PVC 100% SAFE WHEN IT IS PRESSURIZED WITH AIR. If you choose to build this project, you do so at your own risk. I do not accept any responsibility for any/all damage, injuries, or death related to your building or use of a similar device. Check your local laws before making an air cannon, as some cities, counties, and states do not allow them.

-- Parts/tools I used --

As an Amazon Associate I earn from qualifying purchases through links in my descriptions and comments. This helps me finance future videos at no additional cost to you. If you choose to support me in this way, thank you.

- Cannon -
PVC (Schedule 80 recommended!!)
Sprinkler valve: https://amzn.to/3jelI3C
Solenoids: https://amzn.to/3h5ledf
J-B Weld: https://amzn.to/3gU33sb
PVC primer/cement: https://amzn.to/35Vyufy
1/4" NPT tap and 7/16" drill bit: https://amzn.to/2U3NyoO
1/4" NPT coupler, male: https://amzn.to/3dfbdZU
Gauges: https://amzn.to/3vVtEJV
Schrader valves: https://amzn.to/2U502w7
3in wood screws: https://amzn.to/2UIn9NB
Paint: https://amzn.to/2TeYcca
Sandpaper: https://amzn.to/3x1Z3eQ
Dual-lock: https://amzn.to/2UN1dkp
Plywood (we used 1/2")
Two 2x4s
Wood screws

- Electronics -
Battery: https://amzn.to/3zZOP0n
Push buttons: https://amzn.to/3jpG6iv
Wire nuts: https://amzn.to/3zUirw9
22AWG stranded wire: https://amzn.to/3dkN4Bc
Power plugs: https://amzn.to/3A6d11t
Heat shrink: https://amzn.to/3A1sxeF

- Circuit board -
Perfboard: https://amzn.to/3vX3NRO
Headers: https://amzn.to/3gY1hGL
Arduino Nano: https://amzn.to/3jcLDsw
MOSFETs: https://amzn.to/2TVselb (or IRLZ44Ns)
Resistors: https://amzn.to/2UIjCPl
Diodes: https://amzn.to/3xUKlX8
Terminals: https://amzn.to/3A0UTpu
22AWG solid wire: https://amzn.to/3haZlJz
Power jacks: https://amzn.to/3y0absD
Screws: https://amzn.to/3wUexS9
Toggle switch: https://amzn.to/3gR3ELo (optional)
Inserts: https://amzn.to/3A5zdsl (optional)

- Tools -
Soldering iron: https://amzn.to/3dfthmY
Solder: https://amzn.to/3xRtNPP
Drill: https://amzn.to/3jjH6Va
Cutters: https://amzn.to/2U7tNg4
Strippers: https://amzn.to/3qrEwhr
Helping hands: https://amzn.to/3AOzD6J
Fan: https://amzn.to/3A4jnhy
3D printer (optional)
Insert installation tips: https://amzn.to/2U1gj5N (optional)

- Other items (optional)
NRF24L01: https://amzn.to/3xRMhiY

--- Useful Links --
Quad Cannon Demo ►    • Quad Barrel Air Cannon Helps Me Make ...  
How to Make A Simple Air Cannon ►    • How to Make a Simple Air Cannon  
Circuit board writeup ► https://bit.ly/3h0WAMc

- Basic electronics -
Soldering crash course:    • Soldering Crash Course: Basic Techniq...  
learnelectronics: https://bit.ly/3qmwE0s
element14 "The Learning Circuit" playlist: https://bit.ly/2T6Z9mV
EEVBlog: https://bit.ly/3w3Q6AF

- Arduino -
Core Electronics' "Arduino Workshop for Beginners" playlist: https://bit.ly/362bprD
Official Arduino knowledge base: https://www.arduino.cc/reference/en/
Official Arduino forum: https://forum.arduino.cc
DroneBot Workshop: https://bit.ly/3vRVmH9

- NRF24L01 wireless module
How To Mechatronics channel: https://bit.ly/3qmHh3D
NRF24L01 tutorial:    • Arduino Wireless Communication – NRF2...  
Arduino RC transmitter:    • DIY Arduino based RC Transmitter  

--- Attributions --

Music (in order):

Officers Call by the U.S. Marine Corps Band
Yankee Doodle by the U.S. Navy Band
Ceremonial Medley by the United States Marine Band
Roast Beef Of Old England by the U.S. Marine Corps Band
The Rifle Regiment by the U.S. Army Band
National Emblem by the United States Naval Academy Band
1812 Overture by Pyotr Ilyich Tchaikovsky (final segment)

Graphics:

- Thumbnail -
Tennis ball by @lightupphotos from Unsplash: http://bit.ly/3z4Oycc
Water bottle by @charlesdeluvio from Unsplash: http://bit.ly/3z7iVhY
Tomato by @omidian_hamed from Unsplash: http://bit.ly/3cjMEea

- Video and thumbnail -
Clouds vector by upklyak from Freepik.com
http://bit.ly/30WQILd

Footage (included in accordance with 17 U.S. Code § 107: Fair use):

Colonel John Matrix, Commando, produced by Silver Pictures, distributed by 20th Century Fox

Hector Barbossa, Pirates of the Caribbean: The Curse of the Black Pearl, produced by Walt Disney Pictures and Jerry Bruckheimer Films, distributed by Buena Vista Pictures Distribution