root `index` legacy
Mini DIY Flamethrower What more can I say? I built a mini flamethrower! Explaining how I designed the whole thing and showing you a demo of it in action! `2021-07-22` The Idea A few days ago, I was playing around with a can of WD-40 when I saw it had a huge flammable logo on it. Obviously, my first thought was to use a lighter to make a mini flame thrower out of it. To my surprise, it worked wonders! At that point, I thought to myself... How far can I take this idea? This is when I started brainstorming for a way to create a mini DIY flamethrower. The Plan After spending a few hours roaming around hardware stores, I had a pretty good idea of how I wanted to build my flame thrower. At first, I was planning on using ABS pipes to make the frame of the flamethrower. However, since I wanted to use a butane refill can as a fuel source, it would be next to impossible to depress its nozzle through a trigger. For this reason, I had to use the can itself as a frame. I came up with a fairly clever design for the gas dispenser. As can see in the image above, the flamethrower uses a barbecue lighter to ignite the butane coming out of the refill can. However, it is only attached to the can's nozzle and can slide freely through the handle. This way, a 3 step procedure takes place when one presses the flamethrower's trigger: The nozzle of the butane refill can gets depressed when the barbecue lighter is pulled backwards. The barbecue lighter hits the end stop, which depresses its trigger. The butane is ignited and a large flame comes out of its nozzle. For anyone interested, here is a parts list for this flamethrower: 1 Steel M4 nut 2 `2"` Stainless Steel Hose Clamp 1 `3"` Stainless Steel Hose Clamp 1 Butane Refill Can — `165g` 1 Barbecue Lighter — hard shaft 1 `2"` PVC cap 1 `1.5"` ABS pipe — `110 mm` long The Outcome After this long and tedious build process, I was left with an awesome mini flamethrower. What's more, I spent only `30$` on the whole thing and had a lot of fun designing it. I still haven't been able to get the explosives required to finalize my DIY Grenade, so I guess this makes up for it. Below is a video of the flamethrower in action! youtube
© 2025 Emilien Breton `legacy/Mini-DIY-Flamethrower/index.md`

Mini DIY Flamethrower

What more can I say? I built a mini flamethrower! Explaining how I designed the whole thing and showing you a demo of it in action! 2021-07-22

The Idea

A few days ago, I was playing around with a can of WD-40 when I saw it had a huge flammable logo on it. Obviously, my first thought was to use a lighter to make a mini flame thrower out of it. To my surprise, it worked wonders! At that point, I thought to myself...

How far can I take this idea?

This is when I started brainstorming for a way to create a mini DIY flamethrower.

The Plan

After spending a few hours roaming around hardware stores, I had a pretty good idea of how I wanted to build my flame thrower. At first, I was planning on using ABS pipes to make the frame of the flamethrower. However, since I wanted to use a butane refill can as a fuel source, it would be next to impossible to depress its nozzle through a trigger. For this reason, I had to use the can itself as a frame.

image of the flame thrower

I came up with a fairly clever design for the gas dispenser. As can see in the image above, the flamethrower uses a barbecue lighter to ignite the butane coming out of the refill can. However, it is only attached to the can's nozzle and can slide freely through the handle. This way, a 3 step procedure takes place when one presses the flamethrower's trigger:

The nozzle of the butane refill can gets depressed when the barbecue lighter is pulled backwards.
The barbecue lighter hits the end stop, which depresses its trigger.
The butane is ignited and a large flame comes out of its nozzle.

For anyone interested, here is a parts list for this flamethrower:

1 Steel M4 nut
2 2" Stainless Steel Hose Clamp
1 3" Stainless Steel Hose Clamp
1 Butane Refill Can — 165g
1 Barbecue Lighter — hard shaft
1 2" PVC cap
1 1.5" ABS pipe — 110 mm long

The Outcome

After this long and tedious build process, I was left with an awesome mini flamethrower. What's more, I spent only 30$ on the whole thing and had a lot of fun designing it. I still haven't been able to get the explosives required to finalize my DIY Grenade, so I guess this makes up for it. Below is a video of the flamethrower in action!

youtube