Fraz Labs Mechanical Flashlights (formerly QTC Non-Battery Crush)

[thermal guy]

All I knows is I got a tracking number on mine! Oh boy oh boy 😁

 

[TheFraz]

what lens does these lights use?

tough?.

how are wires and solder toughness testing and fixes getting on ?

is this available in 21700 ?

are these EDC' able ?

how would these compare to say the other tough lights such as Malkoff and Elzetta, HDS?.



thanks.

The optic is a Carclo 26.5mm tight spot for the Tiny Nugget series. The Lumenite uses a 35mm Gaggione in either throw or flood. Yes, the lenses are very tough.

The light has no wires and the only solder is on the LED pad and 2 leads. The light really doesn't have any breakable parts (I suspect the battery would be the first thing to fail).
The internals look like this:

The engine creates cinch-points to maintain constant pressure over the LED leads rather than wires.

Here is some torture testing:


The golf test is particularly brutal imo.

The Lumenite is available in 21700 but that version is currently out of stock.

Yes, the Tiny Nugget versions are EDCable. I currently EDC a Tiny Nugget in 18350 or 18500.

My goal is to make these lights the toughest on the market. No electronics to break.

Please let me know if you have more questions.

Thanks,
-Fraz

 

[TheFraz]

All I knows is I got a tracking number on mine! Oh boy oh boy 

They're on the way

 

[bigburly912]

I'm excited to try it out.

 

[thermal guy]

I sent you a pm but was wondering if you could post min/max battery length that we should be using. I'd like to get some ordered but don't want to get ones that are to long thanks

 

[bigburly912]

Post 396 brother

 

[thermal guy]

Ya saw that but curious if we can use cells a little longer or shorter. Or is the length critical.

 

[bigburly912]

Ya saw that but curious if we can use cells a little longer or shorter. Or is the length critical.

Ahhh gotcha

 

[TheFraz]

I sent you a pm but was wondering if you could post min/max battery length that we should be using. I'd like to get some ordered but don't want to get ones that are to long thanks

The 18650s are around 2.56" and the 18350s 1.38". The length is not totally critical but it definitely doesn't need to be much longer than those lengths. Some of the protected cells are probably a bit too long. The tube has double springs (positive and negative end) giving you .3" or so of wiggle room, but getting the battery too long will result in the battery compressing in the tube before the piston compresses. I'm tinkering with some designs that have an adjustment mechanism for the longer batteries but they are still being prototyped. For now generally the unprotected, safe-chemistry, high-discharge battery varieties are what I use.

 

[thermal guy]

Sounds good. Thanks and great work!

 

[TheFraz]

PM incoming for the next on the list:

Tiny Nugget 18350
@lightjunk
@pilo7448
@CRKDmike

Lumenite 18650:
@kevin77
@tanasit

 

[neutralwhite]

is QTC the same as say the HDS Rotary Dial - ?.
thanks!.

 

[thermal guy]

I'll let the experts chime in but basically it functions like peak lights with there QTC. the conductive materials are too far apart to conduct electricity but when pressure is applied, they move closer and electrons can travel through it. It's pretty fail proof and has no moving parts. From what I see it's just a "pill" with this material in it and can be replaced pretty quick. It's a pretty cool design.

 

[scout24]

To add- the light functions in a similar fashion- the more you tighten either half, the brighter it gets. When you loosen, it gets dimmer until it goes out. No electronics, just compressing a conductive material. Actual threads in play here rather than just rotation of part of the light, and no elf as Hogo says.

 

[Johnnyh]

No expert here but I found this "Quantum Tunneling Composite: QTC consists of tiny nickel particles embedded in a rubbery polymer material. When QTC is deformed in some way - by squeezing, stretching or twisting - the nickel particles get closer to each other and the material becomes a conductor. The more it is deformed, the closer the particles get and the better the material is at conducting electricity."
The HDS Rotary uses a different mechanism. Although it ramps up and down when rotated, it increases/decreases in 24 discreet steps...

 

[thermal guy]

Ya not much to go wrong and if I'm thinking right even if the "pill" breaks or gets lost you could probably put a piece of conductive material in the spot and limp home only get one output but.... Not sure so don't take that to the bank.

 

[bluemantra]

Can I get on the list for a Tiny Nugget 18350?

 

[bigburly912]

Oh man. It's hit Knoxville Tennessee

 

[thermal guy]

Mine says still stuck in LITTLE ROCK, AR. Think post office tracking is messed up

 

[bigburly912]

Mine literally just updated. It was stuck for me too