We all have a weakness for a good flamethrower project, but sometimes they can look a little hairy, even if losing hairs to them seems to be the order of the day. [Hyper_Ion] has a ‘thrower that might satisfy the need for fire among the cautious though, because he’s created a remote control flamethrower.
Fuel for the flames is provided from a butane canister held within a 3D-printed frame, and is delivered via a piece of copper tube to a welding nozzle. A plunger beneath the can is connected to a rack-and-pinion driven by a servo, connected to a straightforward radio control receiver. The position of the can is adjusted until there is just enough gas to sustain a pilot flame at the nozzle, and a command to the servo releases a burst of gas that results in a satisfying puff of fire.
This is more of a static stage effect than the wearable flamethrowers or flamethrower guitar projects we’ve seen in the past, but it is no less a neat project. And unlike many other flamethrowers, it’s simple to build. We have to deliver the usual exhortation though: take care with your fire, we’d prefer not to be writing either obituaries of Fail Of The Week posts about smoking ruins.
Tornadoes are a rightfully feared natural disaster. Fire tornadoes are an especially odious event to contend with — on top of whatever else is burning. But, a fire vortex cannon? That’s some awesome eye candy.
The madman behind this cannon belching huge gouts of fire is none other than Youtuber [JAIRUS OF ALL]. This build is actually an upgrade to one of his previous projects — a fire tornado gun that burned itself out and is now twice-revived — and is arguably better at creating a proper vortex to direct the flames. Built around a modified NERF gun, a pair of 60mm electric ducted fans with some additional venting — and tunable via a speed controller — direct the airflow through slits in a vortex chamber. A backpack of liquid propane literally fuels this phoenix of a flamethrower, so [JAIRUS] had plenty of time to put together some great footage. Check it out!
Continue reading “Fire. Vortex. Cannon. Need We Say More?”
For a large proportion of the world’s population, it’s now winter, which means there’s plenty of rain and snow to go around. With the surrounding environment generally cooler and wetter than usual, it’s a great time to experiment with dangerous flame based projects, like this wrist mounted flame thrower.
It’s a build that does things in both a simple and complicated way, all at once. Fuel is provided by a butane canister with a nozzle that needs to be pressed to release the gas. A servo is used to push the canister into a 3D printed housing, releasing the gas into a pipe to guide the fuel towards the end of the user’s wrist. The fuel is then ignited by a heated coil of wire. The heated wire and the servo are both controlled by standard radio control gear typically seen on RC cars or buggies. Using the brushed speed controller to run the heated coil is particularly off-beat, but it does the job admirably.
Overall, it goes without saying that this build presents some serious risks of burns and other injuries. However, the fundamental premise is sound, and it does what it says on the tin with parts that could be readily found in the average junk box.
For another take on a wrist-mounted flame thrower, check out this version using a scavenged solenoid valve.
A team in Xiangyang, China is using a flame-throwing drone to clear debris from high voltage power lines. These lines are made of metal of course, and are impervious to the high heat of the flames. Any type debris that gets on the lines will be charred to a cinder in just a few seconds. This is all is quite a bit safer than sending a human with some type stick up there near the high voltage lines.
Over the years here at Hackaday, we’ve seen people attach some strange things to drones. We can all recall the drone with a real firing pistol. And how about that drone with the huge flamethrower trying to cook a turkey. And let’s not forget the drone that fires bottle rockets. [Caleb Kraft] did a write-up about hacking the AR drone years ago and mentioned that someone put an Estes-rocket on a drone. While all of these are incredibly dangerous, ill-advised and for the most part useless, this new power line clearing drone may be the first exception we’ve seen.
What’s the strangest thing you’ve seen someone put on a drone?
Continue reading “Flame Throwing Drone is Actually Useful”
We’d never criticize somebody for coming up with a creative way to save a few bucks. In truth, pickings would be pretty slim around here if we deleted every project or hack where cost savings was a prime motivator. That being said, there’s still some things you should probably spend a few extra dollars on. You know, the essential things in life that you need to know will be safe and reliable, like your car and…your flamethrower.
While we don’t have any information about what kind of car [Steve Hernandez] is driving, but over on Hackaday.io, he’s posted some info about his 3D printed wrist-mounted flamethrower. The final result does look pretty impressive, but given the subject matter and the lack of any safety gear, we would firmly plant it in the “Don’t try this at home” category.
At the heart of this flamethrower is a solenoid valve recovered from a Glade air freshener. Rather than spraying out the smell of lilacs, this valve has found a new purpose in life by squirting out butane from a pressurized can. The butane is then ignited by a spark gap made up two nails connected to a 300 kV boost coil.
[Steve] designed the frame of this creation in OpenSCAD, and printed it out in a single piece. It holds the butane can and solenoid in position, as well as keeping the nails in the proper orientation for the spark gap to function. Admittedly the head of his printed flamethrower does look very cool, but if there was ever a situation where you should be suspect of the heat tolerance of 3D printed plastic, a flamethrower is probably it.
What’s noticeably lacking of course is any method to keep the flame from potentially traveling back up through the valve and into the butane can. The high-speed flow coming out of the nozzle is probably enough to keep that from happening, but we still wouldn’t feel comfortable strapping his device to our wrist as-is.
You may be surprised to find that wrist-mounted flamethrowers are a relatively popular project here at Hackaday. We’ve covered quite a few over the years, but still aren’t convinced this is something we personally need to add to our collection of gear.
The idea of purpose is one of great importance to many sentient beings; one can only imagine the philosophical terror experienced by a robot designed solely to pass butter. Perhaps wishing to create a robot with more reason to exist, [Micah “Chewy” Leibowitz] decided to build this battlebot armed with a flamethrower, named Flamewar.
In the video, we see it rather successfully facing off against a robot named T800, at least in the early part of the fight. T800 is armed with a spinning weapon, and while it is able to deliver a heavy thump thanks to stored kinetic energy, more often than not T800 seems to knock itself over rather than do any serious damage to Flamewar. Flamewar is repeatedly able to fire its primary weapon, as the flamethrower is built into its arms, far above the reach of T800’s armament. We won’t spoil the ending of the fight. Video below the break.
The robot was built by [Micah] who competes with [Team Tiki], who have documented some of their past builds online. We would like to see some footage of Flamewar actually passing some butter, though. The bout was a part of Robogames 2017, and we’re impressed that such things like flamethrowers are allowed in the rules. Obviously safety is a paramount concern of these events, so it’s awesome to see they’ve found a way to make things work.
If you’re unaware of the dairy product reference, fill yourself in here. We’ve seen other takes on this, too.
We love seeing combat robots here at Hackaday. If you’re thinking about getting started yourself, why not get started with an ant-weight bot to cut your teeth?
Continue reading “Butter Passing Battlebot”
Everyone has an episode somewhere in their youth involving the use of an aerosol spray as an impromptu flamethrower. Take some mildly inebriated teenagers, given them a deodorant can and a box of matches, and sooner or later one or two of them are going to lose their eyebrows.
For most of us an amusing teenage episode is how the aerosol flamethrower remains. Not for [Mike Waddick] though, when last week’s DDoS attack on DNS infrastructure took away his ability to work his, attention turned to a Halloween project. He created a carved pumpkin that spits fire as a notification signal when a text or an email is received.
Key to the project is the Glade Automatic Spray Air Freshener. This is a battery-powered device with an aerosol can that is operated by either an electronic timer or a push-button switch. Remove the switch, and its line is revealed as an active low trigger for the spray. [Mike] replaced the switch with a line from a microcontroller and put a lit tea-light candle in front of the nozzle for fully controllable (if not entirely safe) flamethrower fun. Early tests proved the concept, so it only remained for the pumpkin to be carved and the system installed.
The microcontroller used in this case was the Lightblue Bean, though almost any similar board could have been put in its place. Notifications were processed via Bluetooth from an iPhone via ANCS (Apple Notification Center Service), which the Bean could query to trigger its fiery alerts. There is a brief video showing the device in action singeing [Mike]’s hand, which we’ve placed below the break.
Continue reading “The Pumpkin Noti-Fire”