Sold/Expired Multi-Star/Emitter PR base heatsinks for M@G Mods

I have heatsink/adapters for Luxeon Star or emitter configurations of 1 through 4 LEDs. Electrical connection is through the m@g's PR bulb socket. These custom adapter/ heatsinks are available with heatsink thickness from 1/8" to 3/8" by 1/16" increments to accomodate your choice of optic or reflector. Material is 6061 aluminum with nylon machine screws for mounting stars and brass machine screws for grounding. Price is $14.00 + shipping ($2.00 continental US and $5.00 international)to CPF members. I will ship to any country that Global Priority $5.00 envelope shipping will serve. I accept non cc Paypal at [email protected] Email me for credit card Paypal account.
Please email or PM with questions.
Used in KevinL's mod in "Project Mag3X - 3C, 3 Lux, Lux3, 3 SO20XA" Click ...CandlePowerForums

Re: Multi-Star/Emitter PR base heatsinks for M@G M

I'll take two. One for MagC and another for MagD host.
Any difference btw 3 or 4 stars configuration?

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Not really. The 4 star configuration requires a little filing on the points of the bases aroiund the heatsink to fit in the m@g's head.... PM your email and I'll send pics of each. Be sure to decide the thickness of heatsink you need to suit your choice of optic/reflector!

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Modamag, PM sent

Re: Multi-Star/Emitter PR base heatsinks for M@G M

b2eze, pm sent /ubbthreads/images/graemlins/smile.gif

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Rantanplan, PM replied. Thanks!

Re: Multi-Star/Emitter PR base heatsinks for M@G M

b2eze,
Would these work with 3 SO27XA?


thx,
ernest

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Hi b2eze, I'd like to get 2. However I don't know which heatsink thickness to get. The configuration I plan to use would be 3 stars with 3 SO20XAs in a MagC. Basically same as KevinL. Please let me know. Paypal would be sent in a minute. Thanks.

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Man the Tri-Star bug is really hitting Northern California really hard.

cnee, Kevin used the 1/4" thick but he had to use some aluminum shim.
I've order the 5/16" one, I'll let you know if that one fits if I get it b4 the bay area get together.

Re: Multi-Star/Emitter PR base heatsinks for M@G M

The shim is optional, because the spring-loaded PR base will push the heatsink up against the lens, as intended. You can also use b2eze's polycarbonate spacer. However, the aluminium shim provides the best possible thermal conduction, which is useful if you plan to drive the light as hard as possible.

You can build the shim out of normal kitchen variety aluminium foil. Bundle it up into a roll, bend that roll into a circle of suitable diameter, use a hammer and pound it flat. Slip it in and apply a little thermal grease. Works great - my Meterman 34XR DMM with thermocouple confirms that inside temp is 32degC, outside bezel temp is 31C. YMMV, though. Don't take my temperatures as absolute, but rather, that the shim works acceptably well.

b2eze: /ubbthreads/images/graemlins/happy14.gif

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Cnee,
Your 'sinks are going out this morning.... 1/4" since I'm not sure if 5/16" will work either.... I'm sure Modamag will let us all know! I'll send him 1/4" replacements if the 5/16" won't fit. They will work with emitters.
Vacuum3D.... I don't think you can fit 3 27 mm reflectors inside the mag's head without some drastic surgery. But it will make a really nice 5 watt star conversion with the new version "C" cell with 3 CR 123s and a 1/4" drilled for a single star!
Kevin.... The aluminum foil shim was genius!
You guys are keeping me busy.....( I love it!)

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Thanks folks. This is going to be a lot of fun... /ubbthreads/images/graemlins/santa.gif

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Paypal sent for 1/4" heatsink with 4 Leds configuration. Thanks! /ubbthreads/images/graemlins/thumbsup.gif

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Dabiscake, Check your Email for a pleasant surprise!

Re: Multi-Star/Emitter PR base heatsinks for M@G M

I received the 1/4" heat sinks yesterday. Very nicely machined (Thanks b2eze!). Still waiting for my Lux III stars to arrive. I've made some measurement against a Mag 3C head. In fact the 5/16" heat sinks should work perfectly with the SO20XA reflectors. The extra 1/16" thickness would press the SO20XA firmly against the front lens and stay in contact fully with the Mag head for max heat dissipation. Just want to let you folks know...

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Thanks cnee, Enjoy!

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Paypal sent for 2 more heat sinks:
1 x 1/8" 3 stars
1 x 3/8" 3 stars
Thanks!

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Got my 1/4" heatsink today. It´s nicely done and the manual is looking idiotproof /ubbthreads/images/graemlins/wink.gif ... Thanks b2eze !!!

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Double thanks, cnee! And, rantanplan, I do appreciate your praise of the instruction sheet! I haven't met any idiots here, though! Quite the contrary.....

Re: Multi-Star/Emitter PR base heatsinks for M@G M

Would it be possible to make one thicker than 3/8"? I'd like to use some Fraen LP optics in a C size head. The Fraen is 10.3mm tall, the C head is approx 28.75mm deep, and star height is 2.5mm. This would require a heatsink thickness of 15.95mm or .628" or about 5/8" (little thinner than .628...)

Please let me know, thanks much!

(Thanks Modamag for the star height).