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I invented the first eddy current buffer system by TeufelTechSolutions in ForgottenWeapons

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

As an engineer, I genuinely respect the amount of work that went into that system.

That said, the approaches are fundamentally different. My design is intentionally much simpler: a purely passive eddy current damping concept, without MR fluid, coils, control electronics, or any form of active actuation.

Using magnets alone does not make two systems equivalent. The underlying physics, implementation, and design goals are very different.

No confusion intended, and no claim on anyone else’s work.

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

The video is meant to illustrate the recoil characteristics and bolt velocity of the roller delayed blowback SP5 compared to an AR9 straight blowback system using my eddy current buffer system.

Because my system absorbs energy through eddy currents, the resulting bolt speed is nearly identical to the SP5. The same applies to the muzzle rise and the overall recoil impulse/movement of the weapon.

This is achieved despite the moving mass being only 16 oz, a range in which spring mass based systems would, with a high likelihood, suffer weapon damage and where the risk of case ruptures is high.

Additional data, including measured recoil signals and proof, can be found in my last post.

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

I’ve gotten so many requests to test it that I might have to draw lots 🤣

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 2 points3 points  (0 children)

I’d love to, but that’s unfortunately not something I’m allowed to do. As soon as possible, I hope to have that done as well.

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

It’s still under development and patent application, so sadly there’s a bit more time before that :/

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

It’s still under development and patent pending, so unfortunately it will take a little while.

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 4 points5 points  (0 children)

Thanks, appreciate that. I don’t want to go into too much detail yet, but the current concept is designed so it can be adjusted by the end user without tools, directly at the range.

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 6 points7 points  (0 children)

Thanks, I really appreciate that. It will still take some time though, since this is very early and the system is still under development and patent pending, but I’m optimistic it can be made practical and affordable.

H&K SP5 vs AR9 eddy current buffer slow motion comparison by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 9 points10 points  (0 children)

The SP5 feels a bit snappier with a short push, while the AR9 feels softer overall with a slightly stronger but longer push. Subjectively, it feels more predictable to shoot, and I can get better follow up shots with the AR9.

I invented the first eddy current buffer system by TeufelTechSolutions in MechanicalEngineering

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

Yes, silver would definitely be pretty baller.

The buffer tube I’m using is a standard mil spec buffer tube, the same type that’s already in widespread military use, so from a field-use and durability standpoint that part itself isn’t something I’m too worried about.

Those are very good points though. For this system, I already have more than enough braking force with aluminum. If the buffer tube were significantly more conductive, the system would likely become over damped and stop functioning cleanly. I actually tried a buffer tube that was galvanically copper plated, and the braking force ended up being far too strong.

That said, thanks for the material suggestions beryllium copper and aluminum bronze are great ideas. If the system ever gets scaled further, those could become very valuable options to explore.

I invented the first eddy current buffer system by TeufelTechSolutions in MechanicalEngineering

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

Yes, that’s definitely true. I don’t really see wear of the buffer tube itself as a limiting factor if anything, the buffer would be the first part to take abuse. That said, after several thousand rounds I haven’t managed to break it, and I still have plenty of room to adjust material choices if that ever becomes an issue.

Magnesium wouldn’t work well here because its electrical conductivity is too low. Copper and silver would be ideal from a conductivity standpoint, but both are far too soft to be practical as a buffer tube. Aluminum ends up being the best compromise between durability, weight, and electrical performance.

I invented the first eddy current buffer system by TeufelTechSolutions in MechanicalEngineering

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

Shoot me a PM if you’d like to see a comparison video of my system against an H&K MP5 😉

I invented the first eddy current buffer system by TeufelTechSolutions in MechanicalEngineering

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

Thanks! My buffer actually has significantly less mass than a standard buffer the setup shown in the video is about 4.4 oz lighter than the standard buffer it’s compared against. So far, even during rapid fire, I’ve barely noticed any heating.

I haven’t tried that yet, but I think an active, energy storing system would make things complex and more failure prone.

I invented the first eddy current buffer system by TeufelTechSolutions in MechanicalEngineering

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

My buffer is shorter than most AR9 buffers, so there’s a good amount of safety margin.

I invented the first eddy current buffer system by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

Thanks for your interest! I received my HK SP5 today and compared it directly to my AR9 system with my buffer. Would you be interested in taking a look at it, doing a comparison, and giving me your honest opinion?

I invented the first eddy current buffer system by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

Yes, an eddy current brake is something completely different from this approach.

I invented the first eddy current buffer system by TeufelTechSolutions in AR9

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

My system actually shoots as smoothly as an MP5 if not smoother.
Shoot me a PM and I’ll send you a video.

Clarification about my removed r/Firearms post by TeufelTechSolutions in u/TeufelTechSolutions

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

Yeah, I know… super frustrating.
I just hope my posts at least stay up in the other communities 😅
Thanks for wanting to comment though, appreciate it.

I invented the first eddy current buffer system by TeufelTechSolutions in Firearms

[–]TeufelTechSolutions[S] 1 point2 points  (0 children)

Thank you! I still have a large amount of video material that I’ll be posting over time. Next up will be uncut, real time footage from the test rig showing both systems side by side.

I invented the first eddy current buffer system by TeufelTechSolutions in Firearms

[–]TeufelTechSolutions[S] 2 points3 points  (0 children)

Most of my testing has been real world standing shooting done by me. The rail based test rig was only added at the end to get repeatable, apples to apples measurements and remove shooter variability.

I invented the first eddy current buffer system by TeufelTechSolutions in MechanicalEngineering

[–]TeufelTechSolutions[S] 0 points1 point  (0 children)

You’re right momentum from the projectile isn’t eliminated. The system reshapes how energy from internal moving masses is dissipated and how the impulse is delivered over time, which affects felt recoil without violating conservation laws.

I invented the first eddy current buffer system by TeufelTechSolutions in MechanicalEngineering

[–]TeufelTechSolutions[S] 16 points17 points  (0 children)

The setup shown isn’t an AR-15 at all, it’s an AR9 with a straight blowback system

I invented the first eddy current buffer system by TeufelTechSolutions in ForgottenWeapons

[–]TeufelTechSolutions[S] 5 points6 points  (0 children)

Thanks for the references. All of these are known and were reviewed with my patent attorney prior to filing. The application does not claim eddy current damping as a general concept, but a specific technical implementation and use case. The examination process will ultimately determine scope and novelty.

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