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Old 08-21-2013, 10:46 AM #1
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Default Cree Q5 445 build (Pic Heavy)

Ok so here goes..

I attempted to build one of these a few years ago in a Tr-801 host but killed a driver & 2 diodes in the process. Life got in the way for a year or so, so I decided to try again.

The host is a Cree Q5 from DX HERE

Here are a few "Before" pics










The Heatsink was from Eudaimonium Here


Here is a breakdown of all the parts from left to right

Focus adapter with lens, The crown, LD Module, M-140 Diode, Heatsink and Host Body (parts from Cajun Laser)



The driver is an X-drive mini



I pressed the diode into the module using a diode press and soldered on the wires (The famous Flamingpyro wires) and used heatshrink to avoid and shorts



The wires were threaded through the pill and soldered on to the driver.
The driver was thermally adhered to the pill as well



And it all put together




And now for the all important beam shots







And a video



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100mW Rayfoss 532nm
5 mW WL Core 532nm
~130mW Mini Pocket 650
~300mW Cree Q5
~500mW Trustfire TR-801 638
~1.2W Cree Q5 445nm
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Last edited by Kookapeli; 08-21-2013 at 05:08 PM.
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Old 08-21-2013, 11:05 AM #2
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Default Re: Cree Q5 445 build (Pic Heavy)

Glad the 'sink is working out for you man.

That looks like mighty fine laser. A lot of power in small host!

How long does the battery last, on average?
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Old 08-21-2013, 11:14 AM #3
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Default Re: Cree Q5 445 build (Pic Heavy)

I'm not sure, I can't use my laser allot because i live under a flight path

but i've used it on and off for roughly an hour on a single charge using 2 Trustfire 16430's
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Old 08-21-2013, 11:15 AM #4
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Default Re: Cree Q5 445 build (Pic Heavy)

That sounds good. It's a buck driver, right?

Runtime would probably be horrible with a boost driver and single lithium ion.

BTW, try using 2x 18350 - they're not too expensive and runtime is noticeably longer than 16340 variants.

Wanted to give you rep but says I must spread some around, damn.
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Old 08-21-2013, 11:55 AM #5
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Default Re: Cree Q5 445 build (Pic Heavy)

Ha Ha, no worries, yeah, might get some and use these as backups and yes it's a buck drive
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Lasers Owned


100mW Rayfoss 532nm
5 mW WL Core 532nm
~130mW Mini Pocket 650
~300mW Cree Q5
~500mW Trustfire TR-801 638
~1.2W Cree Q5 445nm
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