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Donny fl and fx tuner.

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Hatmike

Hatmike

Member
Jan 18, 2019
215
8
Fl., United States
Ok iam lucky I live only 20 mins from his shop.so when I got my new harmonic tuner the threads are 1/2 unf. I have mkll that has shroud with 20 m x 1 . emailed those guy s. Pj Clarke got back with me told me I could stop y around 10 .they hooked me up with latest greatest .great company and the atmosphere in shop well hell I would love to work in a place like that but when you get a group of pros together .say no more.
 
I was impressed with these guys from the first time I had any contact with them. I reached out to the for the first time April last year before I purchased a Crown, just asking general questions about airgun suppressors. Donny got back to me immediately and followed up with a number of emails full of advice. I have purchased many DonnyFL items since then and never been unhappy!
 
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Makers of moderators should build in a weight you can dial back and forth for harmonics tune and so steal the market for in between tuners.

Me wanting a FX inline crono, it would look silly with a tuner and then the in line crono and then a moderator, IMO these should be AIO ( All In One )

So i would make a moderator where you could transplant the inside of the FX inline crono into, and then top it off with a few sound damping features.
 
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Peashooter said:
Makers of moderators should build in a weight you can dial back and forth for harmonics tune and so steal the market for in between tuners.

Me wanting a FX inline crono, it would look silly with a tuner and then the in line crono and then a moderator, IMO these should be AIO ( All In One )

So i would make a moderator where you could transplant the inside of the FX inline crono into, and then top it off with a few sound damping
Click to expand...
I'm building one.
 
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Still, short barrels have nodes and all guns have conversions of energy from potential to kinetic and back again before impact which nodal tuning i.e. harmonic tuning can smooth out and make more efficient. Efficiency of these conversations is affected by a lot of factors, and a harmonic barrel of any size will always shoot smoother and straighter than an unharmonic one. Maybe impreceptibly at close range but visibly downrange.

Each node acts like a trampoline. Has the potential to give a double jump or steal a jump. Bad harmonics makes them steal jumps (eventually builds up into barrel whip energy) and misalign jumps (varying pressure of the pellet against the barrel walls) while good harmonics provides incredible focused energy conversion in one direction. Just a comparison but very applicable.

Tuning with weight or mass is one thing and may help reduce wobble i.e. kinetic energy dispersal, which translates to whip thus flight path.Tuning for harmonic resonance is another and is more relevant to placing a barrel tip at the proper location in relation to nodes and is very applicable to suppressor placement and efficacy. An integrated tuner moderator design really is ideal considering what theyre both trying to do.
 
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WOW said:
The first part seems obvious, but magnets? How are magnets used? ?
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Magnets tho? Eddy currents and electromagnetic dampening? I don't believe this tech has been applied to airguns but it's definitely used in high precision equipment. But airguns?

Trying to think how to apply any magnet tech to an airgun is pretty hard... but in principle yes magnets can dampen energy without needing electric input. Node alignment stops the vibrations before they start, tho. Much less need for dampening but maybe could be used in concert. If I knew even one example of magnets used for airgun dampening.... but I dont
 
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WOW said:
The first part seems obvious, but magnets? How are magnets used? ?
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it’s somewhere along the lines of piezoelectric harmonic dampening. too much reading and not enough understanding could be my misunderstanding.
i dont know the science behind it enough to explain so i won’t. i do know that it’s used on planes and buildings to help manage structural oscillations in a dynamic environment. magnets are also used to dampen excessive rattling when a car is fitted with too much subwoofer boom.
 
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daddypaddy said:
it’s somewhere along the lines of piezoelectric harmonic dampening. too much reading and not enough understanding could be my misunderstanding.
i dont know the science behind it enough to explain so i won’t. i do know that it’s used on planes and buildings to help manage structural oscillations in a dynamic environment. magnets are also used to dampen excessive rattling when a car is fitted with too much subwoofer boom.
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Tech is cool. Being piezoelectric, you would be tapping into the innate stored energy of the gun metals and their crystal lattices. It stands to reason you could first charge up your gun with static electricity, or maybe de-charge it, to allow a more acute effect by the magnets. Lol maybe add crystals at the barrel nodes, etc. Right now most people are just playing with boomsticks, but FX is upping the game. We are talking about a weapon that could summon a black hole man lol or at the very least a ghost lmao
 
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daddypaddy said:
it’s somewhere along the lines of piezoelectric harmonic dampening. too much reading and not enough understanding could be my misunderstanding.
i dont know the science behind it enough to explain so i won’t. i do know that it’s used on planes and buildings to help manage structural oscillations in a dynamic environment. magnets are also used to dampen excessive rattling when a car is fitted with too much subwoofer boom.
Click to expand...
My bad it's been done already

Screenshot_20250209_140637_Google.jpg
 
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i dis experiment with the notos and magnets but ultimately was a fruitless endeavor because the short barrel didn’t need it.
i then tried it on a friends cricket and there was a noticeable difference in sound when shot with and without magnets on the barrel. with the magnets on, the barrel sounded like a softer metal sound when tapping on it and when shooting.
i personally couldn’t test any real accuracy improvements because i’m not a skilled enough shooter and the test environment had to many variables to record viable data.
 
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daddypaddy said:
i dis experiment with the notos and magnets but ultimately was a fruitless endeavor because the short barrel didn’t need it.
i then tried it on a friends cricket and there was a noticeable difference in sound when shot with and without magnets on the barrel. with the magnets on, the barrel sounded like a softer metal sound when tapping on it and when shooting.
i personally couldn’t test any real accuracy improvements because i’m not a skilled enough shooter and the test environment had to many variables to record viable data.
Click to expand...
Cool trial tho I'll keep it in mind for designing.
 
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I'm shooting a couple longer barrel pcps, 20-24", so I would bet a tuner and a tensioner both would offer me some precision control.
Guess I forgot to mention my PVC comparison.... say we take a bunch of long flimsy pvc of various sizes. We can tune them to adjust for harmonic nodes, pitch, reverb etc, even weight them and adjust the weights around, and STILL have a bunch of flimsy tubes so tension is the key for point of impact. A tuner on the end of those would do nothing for POI. Tuning and tension are intricately related and I don't think the barrel tuning is very effective without first tensioning. Then you notice and can control the minor differences made by tuning that let you shoot the 100m dimes. I think....
 
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