Allen Pan’s makes ‘Punch Activated Arm Flamethrowers’

YouTube DIY tech star Allen Pan has made devices ranging from a grappling hook gun to  Spider Man web shooters.

But this time, he’s gone a step further, revealing his ‘Punch Activated Arm Flamethrowers’ in a new video. 

The flamethrowing gloves, inspired by anime characters and computer games such as Street Fighter, track the wearer’s arm motion, and only activate on ‘good punches’. 

The flamethrowing gloves, revealed on Allen Pan’s YouTube channel Sufficiently Advanced, were inspired by the art of firebending seen in the TV series Avatar: The Last Airbender, and The Legend of Korra, a series also set in the Avatar universe. 

The flamethrower part of the glove relies on a solenoid valve, an arc lighter – an electric, battery-powered lighter – for ignition, and a chamber containing flammable butane gas to produce the flames. 

Hackster, the punch activated part of the project relies on an Arduino Pro Mini – a small computer built on a single integrated circuit board – and an accelerometer – an instrument for measuring acceleration. 

The accelerometer measures the speed of the punch and feeds this information to the Arduino circuit. 

According to Pan, ‘a first performing a punch has a fairly unique acceleration profile.’

A punch begins with a significant positive acceleration, followed by an extreme deceleration – the end of a punch. 

A punch’s acceleration profile all happens within a small time frame – usually less than 100 milliseconds. 

By recognizing this pattern, the tiny Arduino computer can distinguish between punches and normal, everyday movements.

Once the device is assembled and mounted to an arm, the result is a flamethrower that can be actuated by am Arduino computer only when the wearer has thrown a punch.  

The flamethrower part of the glove relies on a solenoid valve, an arc lighter – an electric, battery-powered lighter – for ignition, and a chamber…

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