Disqualifier Preview

The goal of this project is to build a pneumatically powered shin guard that can assist or initiate a Muay Thai-style kick from a standing position. So far, I’ve selected a core component for actuation: a double-acting air cylinder (25mm bore, 150mm stroke). This was chosen after a lot of back and forth, and frankly, a little obsession with finding something that’s strong enough to move the leg but not so large that it becomes completely unwearable. This thing needs to actually move—not just look cool—and at this point, I’m happy with the tradeoff between power and portability.

Figure 1: Zoomed in view of the pneumatics.

Situation Report

Right now, the core challenge is integration: how to mount the cylinder in a way that allows it to apply force efficiently and comfortably. I’ve started sketching out a structure that braces the actuator against the shin using a rigid but lightweight housing, likely 3D printed or machined from aluminum. The foot plate will be the point of actuation, and I’m experimenting with ways to redirect the cylinder’s linear motion into something that naturally complements the arc of a kick.

The pneumatic system itself will run off a small air compressor, controlled via a solenoid valve and manual trigger, though I’m still playing with how the user will activate it mid-motion without compromising balance or intent. It’s a fine line—too automated and it’s unpredictable, too manual and it breaks flow.

Testing

Figure 1: Test Setup

At this point, design testing for the pneumatic system is complete. I’ve confirmed that the cylinder can deliver a sudden, forceful extension but not with enough power to launch a shin and foot assembly into a kick-like arc. It works. It kicks, but not as potentently as I would have thought. It would, however, without a doubt, get someone disqualified from a martial arts tournament in spectacular fashion. Which, frankly, means it’s doing exactly what it’s supposed to do. This isn’t for sanctioned competition—it’s a prototype meant to explore physical augmentation through rapid pneumatic assistance, and potentially develop a whole new genre of sports.

Next Steps

The next phase focuses on refining the structure, improving ergonomics (as it is currently rather awkward), and making sure the device is safe (at least to the user). I’ll also be experimenting with timing control and actuation sequences to smooth out the mechanical rhythm. The heart of the machine is pumping—now it’s time to flesh it out.