Airsofts are to mainstream, so I made a pocket sized version of the SpudGun. It works like a spitball but has an ignition system. The gun shoots BBs, paper, tissue or any kind of projectile the would fits inside its the barrel. It can work as a mini BB shotgun, just simply load multiple BBs in the barrel and it shoots +4 BBs over 50 meters!
How Does It Work:It work when you put alcohol inside the chamber. In the combustion chamber, flammable materials gets ignited by the electric igniter (piezoelectric sparker), then when the gas or liquid gets burned it quickly creates a large amount of pressure inside the chamber, when the chamber gets pressurized the projectile exits the barrel at a very fast velocity. Since Alcohol is flammable and cheap I decided to use it. Different kinds of flammable gas or liquids can be used for better results.
Please dirseguard my grammar. I was 12 y/o when I posted this :DD
Step 1: Materials You Will Need
- 2 Bottles
- Round Cylindrical Ballpen (BIC)
- Super Glue
Step 2: Getting Your Igniter
Step 3: Saw the Bottle
Step 4: Sanding the Top Part
Step 5: Glue Both of the Top Part
Glue both of the top part to make your ignition chamber. Be sure to apply enough glue for it not to leak. Escape of pressure in the Ignition Chamber reduces the projectile's range of fire. Leave the Ignition Chamber for about 2-8 hours for the glue to dry. Always be sure to make everything right and perfect. Efficiency is a huge factor.
Step 6: Punching Some Holes
Step 7: Disassembling the Ballpen
Step 8: Making the Barrel Set
Step 9: Making the Ignition Set
Get your second bottle cap with the two hole cap. First insert the metal bottom of the Igniter then insert wire into the smaller hole. Secure the set by using hot glue.
Step 10: Assemble the Unit
Step 11: How to Use It
1st.) Unscrew the "Barrel Set"
2nd.) Fill it alcohol (2-5ml)
3rd.) Place your projectile below your barrel
4th.) Blow air for Carbon Dioxide to be replaced with air.
5th.) Screw it back again
6th.) Shake it two times
(See Video For Better Instructions)
Step 12: Aim It
Aim it at your target it should reach a distance for about 20-40 meters. Depends on your barrel and ammo.
Step 13: Tips
- You can make different barrel sets.
- Make your ammo fit into your barrel to increase efficiency with its mussel velocity.
- If your gun shoots very weak check for leaks or change your Barrel Set.
- Use Gatorade to have a larger Ignition Chamber.
- Use eye protection.
- Use denatured alcohol instead of Ethyl alcohol.
- Contact me at ASCexperiments@gmail.com or just PM me here in instructables