Infinity UltraCree
Ok, first I apologize for no pictures. It's just I get so into the mod I usually forget to stop and take pictures. Anyway...
I've had this Infinity Ultra government edition, the one with the NSN number on it originally purchased from
county.com. It's been sitting in my pile of "to mod" stuff for about two years. Well, I did a little research previously and found a couple of people have done a led swap mod with a Lux and more recently a Cree, and maybe one person who used a SSC (soft dome tho so not too good for longevity). Just no one's posted pics or anything so...
I got to thinking how it would do with a cree, especially with the nice wide dispersion pattern, and apparently so have a few others who reported they liked it...but still no pictures. I like pictures, they help me to visualize.
I pulled out my old dremeled and hacked apart Infinity Ultra G and started measuring, then I chucked it in my lathe and bored it out to get rid of the dremel marks I had left in it two years ago. It was now nice and smooth inside. But how do I mount a Cree in there? I had already made a copper penny heatsink for a Lux, but that would not do with the Cree's square shape and anode/cathode arrangement.
I came up with a "batman" symbol shaped heatsink that I thought would work. I made it about 3mm thick, nice and thick :twothumbs:. Then I got out the trusty dremel (no milling machine for me...yet) and cut two slots out, made it kind of look like a very tiny batarang. Top view below.
I made that in my fancy CAD program called Microsoft Paint...
You get the idea of what it looked like. The Cree got two leads soldered to the underside, then epoxied onto the heatsink with the wire leads falling into the slots I cut out. I let it dry then put a little glow-poxy around the emitter and pushed it into the Ultra G head. Flipped it over, trimmed the leads, tinned them, put some potting compound into the remaining cavity, then put the stock board onto the leads, soldered them on and squished the board into the potting compound. Luckily I put in just enough to grab the board and not ooze out (too much). I quickly checked to make sure I had ground contact between the board and the head and then put it in a mini clamp and it's now drying in my work room.
Oh, I did test it quickly, but keeping it upside down to keep the potting compund from running out was a little difficult and gave up.
OOh, ooH, I almost forgot. I left the stock board at it's stock drive level. Someone had reported it put about 150ma to the emitter and I figured this would be plenty for a Cree to get some good night navigation light levels.
I have to give all of the credit for this mod to the people in the below link.
Here's one that pretty much has a link to all of the other ones.
Pictures tomorrow of the completed mod and maybe some beamshots but they will probably be just as bad as any other beamshot I take.:nana:
Edit: added pics
Ok, so it's not tomorrow...:shrug: