I've got a new Key chain kit that uses a CR2 battery! (Primary, or rechargeable)

This nice metal host is heavy duty, and not thin metal. It is the same length as my other tiny Key Chain build that uses a 10280 battery...

The smaller (in diameter) Key Chain kit (10280 battery), is shown here:
http://laserpointerforums.com/f39/fs...tml#post558775

This new kit uses a CR2 battery for a very nice supply considering how small it is! You also have the option of using a Primary, or a Rechargeable!


LPF's beloved veteran daguin has endorsed this kit. See here for pictures of his 441mW 8X blu-ray Key Chain CR2 build and his comments on this kit! (nice build Dave!)
http://laserpointerforums.com/f39/fs-key-chain-cr2-kit-schweet-42773-5.html#post582320

Quote:

Originally Posted by daguin Once again, Jayrob has built us up a winner! Thanks JayRob Peace, dave

Build service!

As you know, I don't sell complete builds. Only kits. But IgorT is has offered to do builds with this awesome Key Chain CR2 host! You can PM him...

Not only does he offer a choice of tested diodes, but he has very high quality building skills!





For DIY, just get the kit form me, and add your diode/AixiZ module/driver...



Two build styles shown below...

Style 1, and style 2. I am offering either style heatsink with the kit. Your choice!







I'm going to offer this as a Host/heatsink kit, but not a 'Hot' option with driver installed.

You will need a version 4 FlexDrive (or later, as long as the newer version is 9mm X 12mm or smaller)




Below, is a detailed, step by step picture tutorial of how this build is done.

Other building methods would work too, but here I show the way that I did it. And you can use this first post as a tutorial.

Some building skill recommended - This is a 'tight' little build, but really not that bad if you follow this tutorial carefully. It is well worth the effort!

Here are the pictures...







For Style 1:






Notice the wires at the diode pins are bent over to make a little more room, as you have seen on some of my other builds as well.
(wires bent, not pins) Use fine wire and 1/16" heat shrink tubing...



Tip: If getting ground from the diode, you may want to ‘pinch’ a stripped wire between the heatsink and host upon final assembly…









For style 2:

I have another heatsink design for this build. This is Igor's heatsink design that I will offer as a choice in this build kit. (leave it to Igor to improve my design)

I will offer both designs because some may be more comfortable with the one or the other building styles.

With style 1, you will be using fine wire to make the driver connections.

With style 2, you will be connecting your FlexDrive directly to the diode pins... (and not using the round circuit board in the build)




So now you have a choice of how you want to assemble this Key Chain CR2 build!

The advantages of the style 2 build, are this:

* Better contact from the heatsink to the host, because you will tighten the retaining ring against the heatsink. (more heatsink mass as well)
* Not having to de-solder the components off of the stock board. (but I would say more difficult to solder the driver directly to the pins)


Tips for style 2:

* Make sure the driver is fixed solid. Maybe with some glue to the module, as well as some hard foam or some other material on the sides to keep it from pushing side to side. It must be pressing against the module, not the pins. Make sure nothing is 'shorting' to the module or heatsink.
* Cut the tail spring shorter to lessen the pressure it would put against the driver...
* With style 2, there will just be enough room for a 'shorter' RCR2 rechargeable battery. (the 3.6/4.2 or the 3.7/4.2 ones will work)
The 3.0/3.6 ones are a little longer for some reason. I don't recommend those for style 2...
* You will solder a small contact point to the driver. Do this part, taking up as little room as possible. Perhaps by just a thin wire soldered through the FlexDrive positive input, and bent over the edge of the board. That is where your battery positive will make contact.
* The negative contact to the FlexDrive will come from the diode case pin. If it's a red build, then this will be automatic, since the diode case pin, is the diode negative, and will be connected to the driver. With a blu-ray build, you will simply solder the diode case pin to the diode negative pin, and then connect to the driver. This is fine for a FlexDrive, since both negative contact points on the FlexDrive are continuous...






Shortest Batteries:

Buy these ones:
RCR2 Unprotected Rechargeable Lithium Battery

They are the shortest I believe...

Lighthound ships really fast too!






I am offering both styles, in case some are not comfortable with soldering directly to the diode pins.







Add a knurled EzFocus Adapter for $20 dollars...




My personal build:

GGW 6X diode at 188mA's. It is giving 236mW's. (405-G-1)

Battery current draw - 340mA's (800mAh CR2 rechargeable)





The kit will include:

* The host
* Primary CR2 battery that comes with the host (the battery may or may not be 'like new', because I don't know how long these have been sitting. But the host comes with a battery)
* Nylon sheath that comes with the host
* Custom machined heatsink shown in my pictures. Style 1, or style 2. Your choice! (you will need a 1.5mm Allen wrench for the set screw)

$44 dollars plus $6 dollars shipping. (my PayPal fees and packaging are built in to my shipping charges)

Options: The Knurled EzFocus adapter for this kit, is designed for use with my 405-G-1 glass lens mod. (Lens mod - see the link in my signature)

* Knurled EzFocus Adapter - $20
* 405-G-1 glass lens mod - $55 31% increase for blu-ray vs AixiZ acrylic! (new) See link in signature!
* 650-G-1 glass lens mod for red! (fit for AixiZ) - $52 25% increase for red vs AixiZ acrylic! (new) Shown here: http://laserpointerforums.com/f64/fs...ase-46332.html

Shipping: Out of U.S. buyer assumes responsibility at that price. It should not be a problem though... (I would mark the package as a gift, with a description of 'LED Flashlight' with a low value of $15)

I think your going to like this one! Thanks for looking!





P.S. I really like this tiny host! So I have also modified one with a Q5 emitter using a custom heatsink, and a modified aluminum reflector and glass lens from a Pocket Mini host...

Check it out!
Q5 Mod - Key Chain CR2! VERY Nice!

Damn it, Jay... you did it again!

This will sell far more than the other keychain because of the battery type, AWESOME.

I foresee sticky coming...

It's a really nice little build...
Jay

Dude!

Wow, now i have to buy even more kits

lol, Amazing Job Jay I look forward to feeling the weight of it in my hand

And it runs off of 1x CR2, so im assuming there arent much of any limitations reguarding the 8x, if any at all?

Very nice!!
Might i suggest you include one rechargeble juice cr2..might make the deal even sweeter:!
Just a thought

Alright... I'm so buying one right now ^_^

I'd love to be the first with an 8x in one of these puppies!

I await an invoice Thank you J!

Tyler - Dark Lasers

Dang that's hot.

Oh I forgot to mention that... The host comes with a CR2 primary battery.

So that will be included. I'll add that in my first post.

Now I'm not making any claims on the quality of the battery, other than it is a new battery that the host comes with...


Dark, I'll invoice you in just a second...

But I want to mention that of course an 8X will work in this host, but the heatsink is not really thick and all. (but the host is thick) If used with a conservative duty, it will be fine though. (IMO)

I always use a duty cycle out of habbit. I read that Igor mentioned that this may not be always necessary, but it sure can't hurt right?
Jay

My thoughts exactly,

I have a horribly awsome habbit of only running a laser for the shortest amount of time possible, but long enough to get the job done. If i feel i will need a longer duty cycle i set current way down. But i usually cap all my lasers at 30 seconds anyways.

I think i'll run a healthy 297mA to it, and hope for the best. I bought 2 BDR's from Kendell that i have no intentions of selling on Dark Lasers. So i have a back-up i guess

Cant wait to see the result, sent a PM about a special request too

Tyler

Just finished the EzFocus Adapter...



Looks nice with knurling to match the host!

This is how it will sit at focus using one of my 405-G-1 glass lens modifications. (and module flush with the custom heatsink face)
Jay

You are officially crazy jay!
In a good way*


true work of art

So sweet! I am going to upload my pics for my mini keychain build tonight.

-Mike

Ha ha!

I guess I am kind of crazy about lasers these days...

So cool!
Jay

Oh you got it built then! Awesome dude...

Can't wait to see your pictures!
Jay

Excelent addition as always!

Yeah, but I bet you can't release TEN unique hosts in one day!

I love the look of the EzFocus on the host. Jayrob has done it again!

I bet he could nah, i KNOW he could

But anyways, I will be building 2 of these around tuesday or wednesday.

So keep an eye posted, as i'll throw up some juicy pics and beamshots of my 8x build! The other will be a PHR build for Maxi3D

Tyler - Dark Lasers

For sure there is just about no end to the different hosts that can be modified...

I've been getting 'pickier' lately. Going for smaller hosts that still have decent heatsinking... cool huh?

Having the option of using a Primary battery, as well as a Rechargeable is nice too!

As you can see from the pictures, this one is very tight for the driver installation. But it is worth the effort! You will love this one, I promise you that...
Jay

Let's just hope you keep on being crazy or we'll never see the awesome kits again

I'll be crazy for quite some time I think...

You can count on these kits and stuff!
Jay

Hey Dark, I sent your Key Chain CR2 build kit and other items today. (Saturday)

Your going to put an 8X in that baby huh?

Let me know how that little beauty turns out!
Jay

Great job once again Jay! I'm impressed that is a pretty tight little build. Keep it going, I can't wait to see whats next.

I'll take that as a feather in my cap coming from you...

I have seen some of your work, and how tight some of your builds are! Such as this one...


Jay

That is a pretty tight build

Impressive!

And YUP! im puttin an 8x in this beauty... i cant wait to see the end result!! The custom aperture, and 405-G1 will add quite a nice touch im sure

Tyler - Dark Lasers

Oh man... that will be SCHWEET!

I don't know if you can get a smaller 8X build with the current needed/battery needed...

I think you will have a record there!
Jay