My Latest Insane Project

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scaru
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My Latest Insane Project

People always said a P60 couldn’t handle 3 XM-Ls. It turns out it can. I was (and still am) pretty happy with my triple drop in, but I feel like there is still wasted space.

I recently heard that Nightcrawl is making a quad XM-L P60, which is the limit of how many LEDs can fit on a board and still have optics. Naturally I still want to have the most XM-Ls in a P60, so I was rather annoyed with Nightcrawl. He would have the one with the most XM-Ls, then I realized. 

Who needs optics. Evil

So my question is, who can make me a heatsink out of copper for P60s that would have holes spaced correctly for this. (Mattaus's heatsinks wouldn't work)

As usual, special thanks to PilotPTK for his amazing work on this. Now I can have some nice thick wires going to the LED. Big Smile

Edited by: scaru on 12/20/2012 - 22:31
NightCrawl
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Oh, so you dont have access to a grandpa with a lathe and huge chunks of copper in the basement? Thats really gotta suck! Big Smile

I'm no mule fan, so go at it. Silly

Rufusbduck
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More may or may not be better, but it sure is more. I think your into the realm of active cooling or toastinator fins.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

dthrckt
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that’s AWESOME

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Girls can shoot!

Tecmo
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Someone else will put one in the middle too and beat you. Might as well go for seven and get it over with.

scaru
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Tecmo wrote:
Someone else will put one in the middle too and beat you. Might as well go for seven and get it over with.

??? I already have 7 on it. 

texas shooter
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SolarForce M3 head might make a good start. Bigger lense, more room to shove copper in. Driver in the normal P60 spot sitting under a giant chunk of copper with the Leds sitting at the top of the host. Lenses resting over the Leds filling up the rest of the M3 assembly, so no mulehead needed.

rojos
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scaru wrote:

People always said a P60 couldn’t handle 3 XM-Ls. It turns out it can. 

I think it was more like people said that a P60 couldn't handle the kind of current it would take to drive 3 XML to their maximum.

Have you been able to get your triple XML to draw more than 6 amps yet?

scaru
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No, I don't like the M3 since it is not a standard P60. 

Also, my search for batteries is over. 

Hypothetically I cant get a minute or two of run time before it runs out of batteries. Of course some basic calculations show it might reach 5000+ lumens. 

texas shooter
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Your going to reinvent the flashbulb with those runtimes and lumens.

scaru
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rojos wrote:

scaru wrote:

People always said a P60 couldn’t handle 3 XM-Ls. It turns out it can. 

I think it was more like people said that a P60 couldn't handle the kind of current it would take to drive 3 XML to their maximum.

Have you been able to get your triple XML to draw more than 6 amps yet?

Yes, but not through the switch. That is why I'm installing a zero-res switch. Wink

rojos
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scaru wrote:

rojos wrote:

Have you been able to get your triple XML to draw more than 6 amps yet?

Yes, but not through the switch. That is why I'm installing a zero-res switch. Wink

What's the max current draw that you've been able to get?

scaru
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rojos wrote:

scaru wrote:

rojos wrote:

Have you been able to get your triple XML to draw more than 6 amps yet?

Yes, but not through the switch. That is why I'm installing a zero-res switch. Wink

What's the max current draw that you've been able to get?

8 amps from and IMR battery straight the body of the drop in. If I do it through the body and the spring it is a bit lower. Even lower if through the tailcap. 

I can tell you that 20 amps is obtainable (hypothetically) using a zero res switch and no springs. 

NightCrawl
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ZeroRez? One of these overpriced oveready thingys?

I'm pretty sure solarforce had a similar switch once..

gords1001
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two

scaru
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gords1001 wrote:
two

What is this?

NightCrawl wrote:

ZeroRez? One of these overpriced oveready thingys?

I'm pretty sure solarforce had a similar switch once..

Yep, one of those overpriced things. Wink Afaik Solarforce never made one. 

As for why I got it, do you really think any spring can handle 21 amps? 
NightCrawl
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Yes. Smile

scaru
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Wait, so you expect a normal conventional switch to handle 21 amps? Good luck. Silly

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you said any spring, not any normal conventional switch Silly

scaru
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Pulsar wrote:
you said any spring, not any normal conventional switch :p

Ok, fair enough. In my limited testing even the fancy gold plated springs can only do 15 or so amps. 

NightCrawl
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Pulsar wrote:
you said any spring, not any normal conventional switch :p

+1

Big Smile

Actually, SF does have such switch: http://solarforceflashlight-sales.com/product_detail.php?t=LF&s=41&id=19...

Btw scaru, so far the AW IMR18650 still seems to be the way to go. We have some promising cells from Samsung and Sanyo coming from the far east, but that might take a while.

LG and Panasonic are out of this contest, no cells with according specs available and Sony have been tested and those are inferior.

Oh, and of course I will modify spring and switch. Using flashlights without any springs gives me a bad feeling about squishing them..

scaru
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Thanks Nightcrawl. The S7 does have a spring and has a decent amount of resistance. 

Sources

http://www.lighthound.com/Solar-Force-L2-Twist-On-Tailcap-ver-L2-S7_p_38...

http://budgetlightforum.com/node/1450

scaru
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Part of the reason I'm obsessing over this so much is when I'm going to use 12 gauge wire within the drop in, I might as well reduce resistance everywhere else. 

gords1001
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scaru wrote:

gords1001 wrote:
two

What is this?

NightCrawl wrote:

ZeroRez? One of these overpriced oveready thingys?

I’m pretty sure solarforce had a similar switch once..

Yep, one of those overpriced things. Wink Afaik Solarforce never made one. 

As for why I got it, do you really think any spring can handle 21 amps? 

This is a knife switch, you said you wanted a switch to handle 21a, I suggest what you want is a switch that fits a solarforce host that handles 21a :bigsmile: Silly J) 0:)

Sorry, limey humour….

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Ah..ahem.This has already been built and sold both in triple and Quad mule configurations.
Link? Search should be fairly easy…The players do reside at CPF

 


JohnnyMac
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DarkSide wrote:
Ah..ahem.This has already been built and sold both in triple and Quad mule configurations. Link? Search should be fairly easy...The players do reside at CPF
But those are triple and quad. This is 7. Huge difference! I say if you can do it go for it. Smile
scaru
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JohnnyMac wrote:

DarkSide wrote:
Ah..ahem.This has already been built and sold both in triple and Quad mule configurations. Link? Search should be fairly easy...The players do reside at CPF
But those are triple and quad. This is 7. Huge difference! I say if you can do it go for it. Smile

In XM-L? Really? I looked around and can't seem to find any, if you can find one I'd be interested to see a link. 

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Over at CPF, there have been some conversations about reducing the forward voltage of LED’s by shocking them with high current pulses. I believe it was a SST-90 though.

Can’t wait to see how this project works out! Wink

BLF ≠ B-grade Flashlight Forum

 

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scaru wrote:
Also, my search for batteries is over.

A123 LiFePO4 cells will give you much longer times above 3.1V, but max voltage will be around 3.3V Plus the 26650 cells can do over 200 amps into a short… 70 amps won’t faze them.

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7 is the max for flat positions if you make a 3d board there’s more space…

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I wish I could get a board like that for my 4 ez900 LEDs Smile

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