Mini-match gets infinite brightness via QTC

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Match
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Mini-match gets infinite brightness via QTC

Hey guys,  just a quick update on what is now my most favored torch.  

After reading about the outstanding job Jekostas did modding his tank E07, I contacted Don about aquiring a few samples of QTC and thankfully he obliged.  The torch to recieve the special treatment is my triple xpg mini-maglite.  The rapid threaded head lends itself almost perfectly to using this for infinate brightness control.  In short order, I had it up and running....and then giggling like a little schoolgirl.  My little torch was no longer a one trick pony, but now able to meet dang near all my illumination needs.  Everyone has an idea in their head of what the perfect torch would be... and for me I just got a little step closer.  

  Here's the quick specs on how it stands now:

  • 2xAA size mini-mag
  • 3xXP-G R5
  • Carlco narrow optics with AR protective lens
  • Uses 2x14500, 2xNiZn, or 2x enegizer lithiums
  • Infinately variable brightness from .1lm to over 800lm
  • Twist on/off action (starts off low, then brightens as it gets tighter)
  • No silly strobes and low only draws 1ma from the tailcap (Loooong runtime thereWink-  Eat that, Zebralight...)

Following Jekostas lead here, I shot a quick video the other night.  Pay no attention to my ramblings, I was tired and excited at the same time.Tongue out

 

 


 

Edited by: sb56637 on 02/14/2012 - 08:19 Reason: sb56637 replaced budgetlightforum.cz.cc with budgetlightforum.com via Scanner Search and Replace module.
okwchin
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Someone needs a finer thread!

 

Thats one way to get brightness control! reminds me of the keychain lights

 

Minus the slightly brighter output of this one Cool

"like everyone else - I’m looking for my next “last” flashlight" -  ohnonothimagain

Don
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Niiiice!

I knew you'd do something special with those.

Impressed!

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

SashiX
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Wow, dude, you need to create your own flashlight company LOL :bigsmile: Awesome ML Crown Try to speak with them and with CREE comp, and start to sell these piece of artwork 8)

sb56637
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Oh yes! That is a nice mod Match! Well done sir. And thanks to Don for obliging with that QTC material.

Budget Light Forum ...where Frugal meets with Flashlight!

jekostas
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Very sweet man, puts what I did to shame - you put the flashlight together AND did the QTC.

pounder
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that looks awesome..i'd love to have one..

mizjif
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Wow! Match, you never cease to amaze me with your sweet creations! I just popped a piece of qtc into my e07 as well and it is absolutely awesome! Now I need to begin a project such as this mini mag!:) well done sir!
jekostas
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Just a thought, but this would work with a standard incan AA-mini mag with an LED upgrade, wouldn't it?  I mean, something like a Terralux mini-star extreme wouldn't be any where near the brightness of Match's masterpiece, but unfortunately not all of us are blessed with his modding skills.

tbenedict
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Nice job...... I want one!

Budgeteer
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Excellent! Now just out of couriosity... since the fancy material used act as a resistor and the more you press it the less resistance it has.... how did you manage to "prevent" the loss of energy on the resistor?

*** and low only draws 1ma from the tailcap ***

You probably used the quantum goop as a variable resistor in the driver or it's a trade secret? Smile


kragmutt wrote:

They're gonna send you a green redcat with a black LED.

Don
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As I understand it, the stuff either passes current or doesn't - there's no resistive heating involved. Since a 4 x 4 x 2mm pill of the stuff can handle 400W there is clearly a different action from the usual resistor. But i could be miles out, it is 29 years since I had to do quantum mechanics and I was never any good at it.

 

What I'd like to know is how it is mounted in the light.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

Budgeteer
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If the stuff does not have any noticeable power loss when current passes through ant any pressure level it is truly an outstanding material.

kragmutt wrote:

They're gonna send you a green redcat with a black LED.

sixfink
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Fascinating!

The technology that makes touch-screens work adapted to flashlight applications. A loss-free dimmer switch... I'm getting ideas...!

Now, where do I get the stuff, and how to work with it?

Don
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sixfink wrote:

Now, where do I get the stuff, and how to work with it?

There are various places sell it, or PM me.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

arenat
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Amazing as usual , how do you manage to not burn the emitters with two 14500 , relying in the internal resistance of the battery ?

fishinfool
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  Match   is my idol. 

 

Don wrote:

"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion

Match
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Wow!  Thanks for the positive responses, Guys!  Let me try and answer some of the above questions:

Jekostas wrote:

Just a thought, but this would work with a standard incan AA-mini mag with an LED upgrade, wouldn't it?

Yup. I actually used it first on  a bone stock incan mini-mag, and it worked fine.  Lowest setting would barely dribble yellow light out the end...

Budgeteer wrote:

how did you manage to "prevent" the loss of energy on the resistor?

By using fairy dust and unicorn piss...Tongue out.  On a more serious note, I think there may be a misunderstanding out there on exactly what goes on in a series circiut.  Edit:  Just deleted huge wall of technical text...

Think of it this way: Adding a QTC is like having variable internal battery resistance.  We're only controlling how much current can come out at any given moment. In the same way that the "internal resistor" of the battery doesn't waste power, neither does the QTC.

Arenat wrote:

how do you manage to not burn the emitters with two 14500?

I'm still using the single mode buck driver from the original build.

 


 

 

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SashiX wrote:

Wow, dude, you need to create your own flashlight company LOL :bigsmile: Awesome ML Crown Try to speak with them and with CREE comp, and start to sell these piece of artwork 8)

I agree with that!

Don wrote:

As I understand it, the stuff either passes current or doesn't - there's no resistive heating involved. Since a 4 x 4 x 2mm pill of the stuff can handle 400W there is clearly a different action from the usual resistor. But i could be miles out, it is 29 years since I had to do quantum mechanics and I was never any good at it.

Cool! are you physicist or something like that?

"no le temo a la oscuridad, la oscuridad me teme a mí"

Budgeteer
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It is truly a wonder material if it acts like a current regulator per se without wasting energy. Still have my doubts that the losses are so small but could be.

Hows the liftime of the thing? 1000+ squeezes?

 

"Cool! are you (Don) physicist or something like that?"

He has a degree or vast knowledge in almost anything that has to do with science or chemistry and beer or ale (never understood what's the difference)

kragmutt wrote:

They're gonna send you a green redcat with a black LED.

Don
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Budgeteer wrote:

He has a degree or vast knowledge in almost anything that has to do with science or chemistry and beer or ale (never understood what's the difference)

 

Traditionally here, beer has hops in it, ale doesn't. Though this seems to vary around the world.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

Budgeteer
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Oh that's it? I guess ale is less bitter and aromatic? Not something i would like a good beer lacks...

kragmutt wrote:

They're gonna send you a green redcat with a black LED.

Don
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I already did. And am happy to pass them on at cost. I can easily get more in under a week in people want them.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

Don
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Today's sterling dollar exchange rate is as bad (for sterling users) as I've seen it in years. They cost 18p each and 20 of them will ship for 76p airmail. They are very small and light so 20 of them will weigh less than 2 grammes. I don't think I have 20 uncommitted so I'll order some more (Minimum order works out at 70  of them).

 

Paypal is fine for payment.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

Don
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I've just ordered 100 more QTC pills at a cost of $35.16 delivered to me. Up to 30 of them delivered to most of the world will cost $1.25 for postage. I can easily get more if people want them. I'm quite happy to sell them at cost to me.

Prices:

5 delivered: $3.01 plus paypal fee.

10 delivered: $4.77 plus paypal fee.

20 delivered: $8.28 plus paypal fee.

 

I'll start a new thread with this info in the seller's spot.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

tbenedict
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Has anyone tried one of these in a Fenix E01?  I know it has a spring, but it would be great to dim one of these.

Don
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Trying it now.

 

Doesn't seem to work - it still just goes on or off - this may be poor placement of the pill or the boost circuit working harder. I just placed the pill on the head's + contact and screwed the body and cell down onto it. If I can think of a better way, I'll try it.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

srfreddy
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Probably the circuitry boosting the cell up-the E01 is a cell vampire. 

Don
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My thought too. I'll need to improvise a better mounting though and try it more thoroughly later. My E01 gets a new cell every year or so whether it needs it or not - just don't want them leaking in the light.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

tbenedict
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Yeah, I have had several battery leaks, even from new batteries.  Some people just use dead cells in their E01's for the dimmer output.

Thanks for checking/evaluating.  Trying to think if I've got any other single modes besides the mini-mag led and Gerber IU.  The Gerber has a bunch of fine thread, but I think it has a spring on both sides.

Don
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I don't trust dead alkalines not to leak and my E01 has been on my work keys since they were announced - well, since they were announced and the one I pre-ordered arrived. The anodising is holding up pretty well for something like 4 years on a keyring.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

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