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Old 11-17-2012, 09:01 PM #17
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Default Re: My 445nm 2D Maglite Build

That's the way to go right there. Aluminum I assume then? It should be hefty enough to take quite a few joules of heat so your duty cycle should be pretty nice. You could run a 9mm at near(or over) 3W in that if you felt like it. That would probably be one of the best hosts for such a build because of the giant heatsink and high battery capacity capabilities.

Some day I would love to be able to make such a build but add micro fans inside for active cooling and likely run it on one of the 4D Mags.


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Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
-445nm -2.2W - M140@1.8A - Aurora C6
-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
-650nm -128mW - 3.8mm OpenCan@200mA - C6 (Mohgasm JAD)
Laserbee II 3.2W and 5W Ophir LPM
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Old 11-17-2012, 09:07 PM #18
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Default Re: My 445nm 2D Maglite Build

Quote:
Originally Posted by ApexProxy View Post
That's the way to go right there. Aluminum I assume then? It should be hefty enough to take quite a few joules of heat so your duty cycle should be pretty nice. You could run a 9mm at near(or over) 3W in that if you felt like it. That would probably be one of the best hosts for such a build because of the giant heatsink and high battery capacity capabilities.

Some day I would love to be able to make such a build but add micro fans inside for active cooling and likely run it on one of the 4D Mags.
Yep, aluminum. And I should be buying/using this module and driver setup from DTR, unless you recommend something better?

I plan on mounting the driver chip to the heatsink with thermal adhesive. I'm hoping for continous duty cycles.


Last edited by troop231; 11-17-2012 at 09:08 PM.
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Old 11-17-2012, 09:18 PM #19
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Default Re: My 445nm 2D Maglite Build

Good choice. Though I would have to suggest you go with the stock lens over a G2. The stock lens is actually superior to a G2 by a couple miliwatts so there is no point. Make sure if you go with the stock lens that you add the holder. That setup will be just about the best you can get.

For heatsinking the driver, I would suggest using a sliver of copper or aluminum to bridge the space from the chip to the inside of the heatsink for the best connection possible. Place the rig inside the heatsink and measure the distance you need to bridge and then find a piece of metal that will fill that space as closely as possible without going over. Then thermal epoxy the metal piece to the driver chip itself. As long as the metal bit is large enough at maybe 1/3 of the size of the driver itself it should be sufficient for cooling the driver without having to thermal epoxy it to the heatsink. It would be even better if the metal chip was large enough to touch the main heatsink but it should still work well without. X-Drives are super efficient and really don't produce much heat so there shouldn't be a problem.
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Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
-445nm -2.2W - M140@1.8A - Aurora C6
-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
-650nm -128mW - 3.8mm OpenCan@200mA - C6 (Mohgasm JAD)
Laserbee II 3.2W and 5W Ophir LPM

Last edited by ApexProxy; 11-17-2012 at 09:20 PM.
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Old 11-17-2012, 09:58 PM #20
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Default Re: My 445nm 2D Maglite Build

Quote:
Originally Posted by ApexProxy View Post
Good choice. Though I would have to suggest you go with the stock lens over a G2. The stock lens is actually superior to a G2 by a couple miliwatts so there is no point. Make sure if you go with the stock lens that you add the holder. That setup will be just about the best you can get.

For heatsinking the driver, I would suggest using a sliver of copper or aluminum to bridge the space from the chip to the inside of the heatsink for the best connection possible. Place the rig inside the heatsink and measure the distance you need to bridge and then find a piece of metal that will fill that space as closely as possible without going over. Then thermal epoxy the metal piece to the driver chip itself. As long as the metal bit is large enough at maybe 1/3 of the size of the driver itself it should be sufficient for cooling the driver without having to thermal epoxy it to the heatsink. It would be even better if the metal chip was large enough to touch the main heatsink but it should still work well without. X-Drives are super efficient and really don't produce much heat so there shouldn't be a problem.
Thanks for the tips, looks like I'll go with a stock lens and save a few $ also Couldn't I directly bond the driver chip to the back of jayrob's heatsink and all will be well?

Also, I should get a continuous duty cycle, correct?
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Old 11-17-2012, 10:13 PM #21
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Default Re: My 445nm 2D Maglite Build

The driver is already attached to the diode and module so you don't really have the ability to place it anywhere but inside the 12mm hole that's drilled in the middle of the heatsink unless you want to get risky and desolder the driver and then solder leads on it.

I wouldn't say continuous duty cycle. I don't think that could be attained with a 9mm using anything short of a giant copper heatsink with good heatsinking fins. Your duty cycle should be quite long though. Into several minutes easy. The issue with hosts like a Mag is that the heatsink absorbs heat but there isn't really many places for the heat to escape. An optimal heatsink is designed with fins to allow the heat to dissipate into the air which most hosts lack so they build up heat until you need to turn them off and let them cool down.

If you are wanting the best possible duty cycle then make your driver heatsink as big as you can get to fit inside the main heatsink.
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NEW 1.5-2.5W 445nm Blue Ice/Black Ice/Flash Freeze Lasers FREE US Shipping!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
-445nm -2.2W - M140@1.8A - Aurora C6
-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
-650nm -128mW - 3.8mm OpenCan@200mA - C6 (Mohgasm JAD)
Laserbee II 3.2W and 5W Ophir LPM
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Old 11-17-2012, 11:43 PM #22
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Default Re: My 445nm 2D Maglite Build

Quote:
Originally Posted by ApexProxy View Post
The driver is already attached to the diode and module so you don't really have the ability to place it anywhere but inside the 12mm hole that's drilled in the middle of the heatsink unless you want to get risky and desolder the driver and then solder leads on it.

I wouldn't say continuous duty cycle. I don't think that could be attained with a 9mm using anything short of a giant copper heatsink with good heatsinking fins. Your duty cycle should be quite long though. Into several minutes easy. The issue with hosts like a Mag is that the heatsink absorbs heat but there isn't really many places for the heat to escape. An optimal heatsink is designed with fins to allow the heat to dissipate into the air which most hosts lack so they build up heat until you need to turn them off and let them cool down.

If you are wanting the best possible duty cycle then make your driver heatsink as big as you can get to fit inside the main heatsink.
DTR is putting some 3" leads in between the diode and the driver for me

A couple minutes for duty cycles should suffice. Since I don't have a laser power meter (yet) I wonder what my wattage will be?

Last edited by troop231; 11-17-2012 at 11:43 PM.
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Old 11-18-2012, 12:37 AM #23
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Default Re: My 445nm 2D Maglite Build

I suppose the duty cycle would be pretty good considering the thermal mass of the mag 2D host and everything inside it (inluding batteries and all).

Perhaps its even possible to operate in continuously, depending on airflow around the host mostly. If you use it handheld and waving it around i suppose that the surface area of the 2D mag would suffice to cool 5 to 10 watts, but if you set it on a surface indoors, it probably will not.
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Old 11-18-2012, 01:47 AM #24
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Default Re: My 445nm 2D Maglite Build

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I suppose the duty cycle would be pretty good considering the thermal mass of the mag 2D host and everything inside it (inluding batteries and all).

Perhaps its even possible to operate in continuously, depending on airflow around the host mostly. If you use it handheld and waving it around i suppose that the surface area of the 2D mag would suffice to cool 5 to 10 watts, but if you set it on a surface indoors, it probably will not.
I'm just wondering what my LD output power will be approximately since I won't have a meter for awhile.
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Old 11-18-2012, 03:08 AM #25
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Default Re: My 445nm 2D Maglite Build

that all depends on the efficency of the diode. i've got a 9mm with g2 lens and x-drive at 2a and it's makeing 2.8w.
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Old 11-18-2012, 05:10 AM #26
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Default Re: My 445nm 2D Maglite Build

My LPM should be in within a few days and I would be willing to measure it for you when its done if you like. It's basically impossible to guess the output because each diode varies so greatly.

Having leads on the driver will let you heatsink it to a solid surface easier that's for sure. Unfortunately most of the time(with an x-drive) the main heatsink gets hotter faster than the driver so you may be best off heatsinking it to a separate metal part like a pill or the host itself. I don't how you be designing the inside of the mag so it will vary. The driver doesn't need much heatsinking either way so you have options.
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NEW 1.5-2.5W 445nm Blue Ice/Black Ice/Flash Freeze Lasers FREE US Shipping!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
-445nm -2.2W - M140@1.8A - Aurora C6
-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
-650nm -128mW - 3.8mm OpenCan@200mA - C6 (Mohgasm JAD)
Laserbee II 3.2W and 5W Ophir LPM
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Old 11-18-2012, 08:18 PM #27
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Default Re: My 445nm 2D Maglite Build

So I should stick with the stock lens instead of buying a G2 if all I'll be doing is burning and such?
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Old 11-18-2012, 08:44 PM #28
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Default Re: My 445nm 2D Maglite Build

The stock lens is nearly identical if not very slightly better than a G2 so there is no need for a G2 on a 9mm. If anything you would have a 3-element as well for improved divergence if you want to use it at further distances.
__________________
Tutorial: Pressing a Diode
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
NEW 1.5-2.5W 445nm Blue Ice/Black Ice/Flash Freeze Lasers FREE US Shipping!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
-445nm -2.2W - M140@1.8A - Aurora C6
-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
-650nm -128mW - 3.8mm OpenCan@200mA - C6 (Mohgasm JAD)
Laserbee II 3.2W and 5W Ophir LPM

Last edited by ApexProxy; 11-18-2012 at 08:45 PM.
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Old 11-19-2012, 01:24 AM #29
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Default Re: My 445nm 2D Maglite Build

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Originally Posted by ApexProxy View Post
The stock lens is nearly identical if not very slightly better than a G2 so there is no need for a G2 on a 9mm. If anything you would have a 3-element as well for improved divergence if you want to use it at further distances.
If a 3 element is the best setup, then that's what I'll buy from DTR. There's no disadvantage to a 3 element, correct?

Edit: this is exactly what I need, correct?


Last edited by troop231; 11-19-2012 at 01:28 AM.
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Old 11-19-2012, 01:34 AM #30
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Default Re: My 445nm 2D Maglite Build

I've got a g2 on my 9mm. I bought it Incase I had an issue with extracting the 9mm lens for its housing thing. If you don't use the 9mm lens I'll buy it off you.
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Old 11-19-2012, 01:43 AM #31
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Default Re: My 445nm 2D Maglite Build

The disadvantage to a 3-element is a reduced output power. The lens sits further from the diode which means it misses a little more of the light that's emitted. A G2 and the stock lens have about an 8% loss where the 3-element has about 20%. You sacrafice a little power for a smaller beam.
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Old 11-19-2012, 01:46 AM #32
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Default Re: My 445nm 2D Maglite Build

Quote:
Originally Posted by ApexProxy View Post
The disadvantage to a 3-element is a reduced output power. The lens sits further from the diode which means it misses a little more of the light that's emitted. A G2 and the stock lens have about an 8% loss where the 3-element has about 20%. You sacrafice a little power for a smaller beam.
I guess it boils down to if the 3 element lens will be able to burn cardboard tubes. I plan to use it in the wind to start fires on trips.
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