toked323, are you talking about using one of these batteries? To get 3.6 volts total? I have used this voltage in an MXDL for a Cree emitter, but went back to 7.2 volts for the DDL driver in the MXDL red burners. But I did take a look at that link, and it says that those batteries are the same size as a AA battery. The length of a AA battery is not compatable (size wise) with the MXDL.
Jay

I know, its a smart idea. but, where do you charge 14650's?[/quote]
here!
(that's the direction I've been headed for my burner)[/quote]


nice man! go for it and tell us how it comes out![/quote]

Hey are you guys talking about using a different driver for these burners? Sounds like your talking about using a single, 3.6 volt battery??
Jay

me - yes... one very large one - less waste, more wasting power 8-)

that is, if I get the circuit & parts right :P

Keep us up to date with new driver configurations! I can tell you that, (since we are in the 'heatsink' tread) if your talking about an open can diode, you won't be happy with less than 350mA's. You'll get a little over 200mW's @ 350mA's with an acrylic lens. You will like 420mA's better!
Jay

Keep us up to date with new driver configurations! I can tell you that, (since we are in the 'heatsink' tread) if your talking about an open can diode, you won't be happy with less than 350mA's. You'll get a little over 200mW's @ 350mA's with an acrylic lens. You will like 420mA's better!
Jay
[/quote]

with a 14650, Ill go with an AMC7135. but, i do prefer 420mA, as it KIKS A$$!!! i cant explain how mcuh I love my laser.... I wouldnt give itaway even if someone offered a million bucks (BTW thats just figurative speaking, if you are willing to pay a million PM me and ill be sure to assist you).

regards,

amk

jay they are 7/5 AA they are longer than AA and a bit wider

lolzmfao, guys, its a slim version of an 18650. its 14mm in diameter and 65mm long...

Oh...ok. Hey it looks like these are the same size in diameter as the CR123's:
Edit: These are the protected ones: http://www.batteryjunction.com/protected-17670.html
I haven't tried them, but the size is 17mm X 67mm, so it should fit right in there! But, as I have said, I went away from this idea, because I found that I wanted more than 350mA's. Also, it will be more work than it's worth using the AMC driver, because of having to isolate the LD/heatsink...
Jay

true true

Oh...ok. Hey it looks like these are the same size in diameter as the CR123's:
http://www.batteryjunction.com/17670.html
I haven't tried them, but the size is 17mm X 67mm, so it should fit right in there! But, as I have said, I went away from this idea, because I found that I wanted more than 350mA's. Also, it will be more work than it's worth using the AMC driver, because of having to isolate the LD/heatsink...
Jay
[/quote]

very true, if only the AMC was like the DDL regarding the - polarity....

Now for the Cree mod in the MXDL, this battery,
http://www.batteryjunction.com/protected-17670.html
should be perfect using an AMC7135/1050 driver:
http://www.dealextreme.com/details.dx/sku.1885

The emitters, are already isolated from the aluminum 'star' heatsink that they are mounted on. Some models I have made using this driver, are near the bottom of this page:
http://www.laserpointerforums.com/fo...=1194770080/90
Jay

that batt is 2 mm longer and 1 mm thinner... Im preety sure the 14650 would be fine, as it is ust an 18650 in lsim style. You might have problems screwing on the cap all the way with that batt. Have you tried it sucessfully?

that batt is 2 mm longer and 1 mm thinner... Im preety sure the 14650 would be fine, as it is ust an 18650 in lsim style. You might have problems screwing on the cap all the way with that batt. Have you tried it sucessfully?[/quote]

amk, I have not tried that battery. But, I'm sure it will fit perfectly because it is the exact same legnth as an 18650 (67mm), which I have tried (in a drilled out MXDL) And, of course, we have all tried the RCR123's, which are the same diameter as the 17670 battery. (17mm)
Jay

that batt is 2 mm longer and 1 mm thinner... Im preety sure the 14650 would be fine, as it is ust an 18650 in lsim style. You might have problems screwing on the cap all the way with that batt. Have you tried it sucessfully?[/quote]

amk, I have not tried that battery. But, I'm sure it will fit perfectly because it is the exact same legnth as an 18650 (67mm), which I have tried (in a drilled out MXDL) And, of course, we have all tried the RCR123's, which are the same diameter as the 17670 battery. (17mm)
Jay
[/quote]

an 18650 is 65 mm long, see my pos in you MXDL mod for super bright flashlight thread. there I explain why it wont fit.

amk, here is a link to some 18650 batteries: *
http://www.batteryjunction.com/li18322mahre.html
You can see in the description that they are 67mm long. *

But, even if there is only a couple of mm difference, it won't matter. The MXDL tail switch has a spring loaded brass contact. It gives you over 1/8" of movement there. Or, if the battery is just a 'hair' short, you can easily use a small flat magnet on the negative end of the battery. But the chargers that I have are the same fit for 18650 and 17670 battery length.

So, like I said before, I am sure that the 17670 batteries will fit perfectly into the MXDL. Even though I have not personally tried them. I think that the 14650's would be too 'sloppy' and loose inside. You would have to wrap them with tape or paper to keep them from rattling around...
Jay

Now, back to the heatsinks...
acro-ii, and bcroft, your heatsinks are ready. I will be dropping them off at the post office in a few minutes. You should have them by around Tuesday or Wednesday. Let me know how you like them!

You will need a 1.5mm Allen wrench for the set screw. Do not try to use any other size.

bcroft, yours is 1/8" shorter at the bottom per your request, to give you a little more room inside...
Jay

looks sweet, thanks jay. i wont get my MXDL for another 2 weeks though. dad gum DX shipping

JAY:

They are longer by 2 mm because of theprotection circuit. so, if 1767's are 67mm long, + the protection circuit = 69mm. that is too loong! once again, descriptions are read liek this:

18 witdth
65 lenght
0 doesnt stand for anything

so, thats why you will have a tight and barely "fit" fit with 17670's. the 14650's are AA width, + the wrapping, which would bring it to exactly CR123 width. the wrapping on the 17670's would make it too fat. also, the length of the 17670's + the protetion circuits would make it an impossible fit. 14650's will fit, and they wont be loose and sloppy.

amk, really now, why are you talking about a single 3.6 volt battery in this 'MXDL heatsink' thread? A single battery with an AMC driver will only give you a little over 200mW's. (open can) And also, you would have to isolate the LD/heatsink. It seems that the goal is 250mW's or more here. For that, you will need to use 2 X RCR123 batteries (DDL driver) in the MXDL...
Jay

that is true, the DDL at 420mA is the way to go.

I really dont see why anyone would want 3.6v in a MXDL anyways, unless they plan on using AMC's, and wrapping the heatsink in electrical tape.

I just didnt want anone buying a battery and then not being able ti fit it.

If i was to give you 2 dimensions, a diameter and a thickness could you make me one? it doesnt need any beaveled edges. All i need is a 1cm thick heat sink which will fit a aixiz diode(pressed in). Let me know.

I suppose we could try that. However, I would need a drawing with very specific dimensions, including diameters as well. Like the picture which shows the exact dimensions of my design, that I posted earlier in this thread. I would follow your drawing, and turn the diameters just a 'hair' smaller. The only thing is, if it needs some adjustment, you can't expect me to be responsible for shipping costs...
Jay

Oh wait a minute...You said 1cm thick? That's like 1/3 of an inch. For my little lathe, I don't think that is enough length for the chuck to grip good enough to have it 'spin true'.

I really would rather not get involved with new designs man. I can tell you that you would not be dissappointed with the MXDL host. And they are only $12 bucks! Free shipping too.

yea the MXDL is truly a good host!

BTW, jay, my battery contact PCB is making contact with the + on the batts, but I am not getting any -... I figured if I glue/solder a wire from the pcb to the aluminum it would work, how did you do yours?

I like to solder a piece of solid wire to the outside (negative) ring of the PCB, then bend it over the edge so that when you 'press' the board into place, it pinches tight against the threaded mount. This picture shows a picture of a different driver in the MXDL Cree mod, but is it the same principal of what I like to do with the MXDL laser mod...
Jay

Here, have a look at this. Tell me if either are a possible option.



If you were to make them for me and they happen to be the wrong size, i wouldnt waste any more of your time on new dimensions so let me know if you can make this happen.

Thanks champ.