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Old 12-25-2013, 08:12 AM #33
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Default Re: 3.1W 9mm 445 fan cooled handheld

Collection? I can't call it a collection yet. Too few haha Just let me know when you drop by


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Old 12-26-2013, 01:43 AM #34
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Default Re: 3.1W 9mm 445 fan cooled handheld

Quote:
Originally Posted by PewPewPlease View Post
LivinLoud, where is the like button for your post? Ha.
Closest thing to a like button is the "rep" button, + rep obviously lol
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Old 12-26-2013, 03:03 AM #35
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Default Re: 3.1W 9mm 445 fan cooled handheld

I had the exact same idea for the exact same heatsink. Great minds think alike, I guess. Mine still hasn't
come in yet due to some kind of shipping problem.

Where did you pick up the battery holder?

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Old 12-26-2013, 03:17 AM #36
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Default Re: 3.1W 9mm 445 fan cooled handheld



I got both the heatsink and battery holder from fasttech. It's a 2x18650 holder already configured in parallel.
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Old 12-30-2013, 04:15 PM #37
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Default Re: 3.1W 9mm 445 fan cooled handheld

Finally had access to a lathe. Made a new shroud from another length of PVC.

It looks like a jet engine now.



Reminds me of those things they race in star wars


Added a fan guard to keep my finger away from the fan blades.


made a focus adapter from a scrap piece of polycarbonate after burning my finger while focusing. ouch!


Every laser needs a label so I peeled a label off a harvested DVD burner.


I also added a DC-DC converter from a cheapie flashlight that converts the 4.2V to 6.6V driving a 5V fan. Now, not only does it look like a jet engine, it sounds like one too
Attached Thumbnails
3.1W 9mm 445 fan cooled handheld-img_1092.jpg   3.1W 9mm 445 fan cooled handheld-img_1094.jpg   3.1W 9mm 445 fan cooled handheld-img_1095.jpg   3.1W 9mm 445 fan cooled handheld-img_1096.jpg   3.1W 9mm 445 fan cooled handheld-img_1097.jpg  


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Old 12-31-2013, 07:13 PM #38
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Default Re: 3.1W 9mm 445 fan cooled handheld

Bump. First post for 2014

My uncle and I used the lasers to light fireworks. Worked well, my 1.7W lit them up so-so while also quickly reaching the duty cycle limit.

The 3.1W laser worked almost 100% duty with no overheating issues until the battery died. My uncle managed to drain the two Panny 3400s lighting up fireworks with the laser mostly on for almost 2 hours straight with a few secs rest in between. The supercharged fan worked a treat!
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Old 01-12-2014, 06:54 PM #39
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Default Re: 3.1W 9mm 445 fan cooled handheld

How powerful is the fan?
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Old 01-12-2014, 07:00 PM #40
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Default Re: 3.1W 9mm 445 fan cooled handheld

Just got a hold of a sweet little 12v fan . I need to give this a try.

At 12v my fan is stupid powerful, scientifically speaking
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Old 01-12-2014, 08:45 PM #41
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Default Re: 3.1W 9mm 445 fan cooled handheld

Love the ingenuity. REP when I can get to my computer (Galaxy S3 won't allow)

Got ya
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Old 01-13-2014, 12:53 AM #42
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Default Re: 3.1W 9mm 445 fan cooled handheld

Quote:
Originally Posted by Mattronium View Post
How powerful is the fan?
It's just your standard 1" square 5V 100mA fan

Quote:
Originally Posted by Tmack View Post
Just got a hold of a sweet little 12v fan . I need to give this a try.

At 12v my fan is stupid powerful, scientifically speaking
How big is it?

Quote:
Originally Posted by Pman View Post
Love the ingenuity. REP when I can get to my computer (Galaxy S3 won't allow)

Got ya
thanks!
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Old 01-13-2014, 02:01 AM #43
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Default Re: 3.1W 9mm 445 fan cooled handheld

About 1.5x1.5". Type NMB-MAT. MODEL NUMBER 1511FB-04W-B56
12v
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Old 01-13-2014, 02:52 AM #44
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Default Re: 3.1W 9mm 445 fan cooled handheld

Should still run very fast with two cells. Just make sure the air passes to as much heatsink surface area as possible and it will be very effective.
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Old 01-13-2014, 02:59 AM #45
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Default Re: 3.1W 9mm 445 fan cooled handheld

I tested with one cell and it runs very fast even at 3.v . I also have one of those tiny 12v cells for cameras or something but I wonder how long it will run it.
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Old 01-13-2014, 02:07 PM #46
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Default Re: 3.1W 9mm 445 fan cooled handheld

Is that the fan used in the harvested projectors? I only got the bigger ones from DTR. The smaller ones weren't available at the time.

Those 12V cells would last a few seconds at best. If you open them up, they're made up of about 8 button cells in series.
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Old 01-13-2014, 02:43 PM #47
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Default Re: 3.1W 9mm 445 fan cooled handheld

Yeah I think it is. It's from Hakzaw1.

I ran the little cell for about 20 seconds. But from what you say, I probably damn near ran it dead. Still reads 12v on my dmm. But I didn't think it would last more than about a minute. My pocket dmm uses them and I was just wondering. I think the way you did it is best.
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Old 01-13-2014, 03:40 PM #48
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Default Re: 3.1W 9mm 445 fan cooled handheld

use those li-ion - USB charger boards from FT or DX. they got tons of those which is a convenient 4.2V to 5V regulated converter.
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