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Old 01-26-2012, 04:45 AM #17
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

That problem could be solved by a little more machining to remove more metal around the back of the diode by the pins.


Quote:
Originally Posted by Le Quack View Post
Problems I forsee with that design...what if your laser diode's leads aren't as long as they show in the picture? You can't use it then!


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Old 01-26-2012, 04:54 AM #18
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

what am i missing?
Wouldnt you just solder a wire inbetween your driver and diode?
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Old 01-26-2012, 08:59 AM #19
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

With that back, wouldn't it be impossible to solder a driver inside of it? and/or actually unscrew the back if you manage to fit a driver?

Or would that be made to have leads attached to it and be a "loose head" with external driver?

Last edited by Blutquell; 01-26-2012 at 09:00 AM. Reason: typo
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Old 01-26-2012, 09:06 AM #20
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Quote:
Originally Posted by Blutquell View Post
With that back, wouldn't it be impossible to solder a driver inside of it? and/or actually unscrew the back if you manage to fit a driver?

Or would that be made to have leads attached to it and be a "loose head" with external driver?
I dont think so, I'm pretty sure the back is designed to be a heatsink for a driver. (notice how the inside has a flat surface)
however i dont think you will be able to unscew it once your dirver is attached to your diode

My guess is that there is an opening, (see how the opposite side has an opening on it)
where you can stick your soldering iron and hook up your driver.
but i'm not sure
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Old 01-26-2012, 11:43 PM #21
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Quote:
Originally Posted by justinjja View Post
I dont think so, I'm pretty sure the back is designed to be a heatsink for a driver. (notice how the inside has a flat surface)
however i dont think you will be able to unscew it once your dirver is attached to your diode

My guess is that there is an opening, (see how the opposite side has an opening on it)
where you can stick your soldering iron and hook up your driver.
but i'm not sure
Oh i thought it was a cross-section of the solid lol
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Old 01-27-2012, 01:16 AM #22
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

There's something to be said for maintaining "standards", regardless of their real or perceived flaws. For example, the new fluorescent and LED lighting still fits the old incandescent bases...
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Old 03-20-2012, 10:52 PM #23
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Quote:
Originally Posted by Fiddy View Post
saw them on eBay

Copper 3.8mm diode mount for 12 X 30mm laser module blank | eBay

$12.75 USD a pop 5.6mm and 3.8mm

or $52.56 for 5 which is $10.5 a pop

On the other hand Survival Lasers are selling the 5.6mm versions at $9 a pop which is 30% cheaper if your buying singles and and 14% cheaper if your buying multiples

Also if buying 3.8mm modules you can get 10x aluminum short modules from RHD for $2 cheaper than the 5x copper modules from Aixiz!

My 2 cents.
I wish that I had seen this before ordering a 5-pack of copper 5.6's from Aixiz!



Oh well...
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Old 03-20-2012, 11:00 PM #24
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Don't buy them from me, unless you really need them, and can't get them from Aixiz for some reason.

I won't sell mine without measuring each one, and testing them with a metal lens. It's actually a huge pain in the butt, but necessary because of eMachineShop's tolerances.

So, I'm sort of "here if you need them", but would rather you buy them from someone else, whenever possible, because it actually takes me quite a bit of time to test and package up MOD38 orders.

I'm also getting somewhat low on MOD9s (never thought that would happen!)
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Old 03-20-2012, 11:14 PM #25
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

You still Ultra-Bumped this thread
I do agree on what bionic badger has to say..
for so friggin long we've been using standard
zinc'd up brass modules i did thought of that,
and for some reason i did order 1/2" copper
rod and 9x0.5 threading tool to machine a batch
of 40 Cu modules of same size as aixiz without
the back threads for the future builds/hosts..

There is a very huge benifit of using the copper
modules over the brass, Using brass module will
only bottleneck the heat transfer from the origin(diode)
and is not sufficient.. We will have a much more stable
output from high powered builds and its about time
when we finally abandon them and shift towards more
efficient designs or direct press heatsinks..
Hats Off to The Vets , Jay Jeff and rest of em,
they're the real visionaries in this section of the hobby ,

Thanks a million guys!!
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Old 03-20-2012, 11:15 PM #26
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

I'm good with you, I did get some extra 5.6 coppers from Survival though. Those end up being less than $9 each with the LPF discount.
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Old 03-20-2012, 11:33 PM #27
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Quote:
Originally Posted by sinner View Post
You still Ultra-Bumped this thread
But the Survival Link to the copper modules still works and is a great deal!


Quote:
les i did thought of that,
and for some reason i did order 1/2" copper
rod and 9x0.5 threading tool to machine a batch
of 40 Cu modules of same size as aixiz without
the back threads for the future builds/hosts..
Did you ever do it?

I think keeping the back on the design is good, in copper. More heat sinking.


Quote:
There is a very huge benifit of using the copper
modules over the brass, Using brass module will
only bottleneck the heat transfer from the origin(diode)
and is not sufficient.. We will have a much more stable
output from high powered builds and its about time
when we finally abandon them and shift towards more
efficient designs or direct press heatsinks..
I'm with you. Unfortunately I do not have a lathe...
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Old 03-20-2012, 11:43 PM #28
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Quote:
Originally Posted by tsteele93 View Post
But the Survival Link to the copper modules still works and is a great deal!




Did you ever do it?

I think keeping the back on the design is good, in copper. More heat sinking.




I'm with you. Unfortunately I do not have a lathe...
I meant that in a good sense, This thread must spread some awareness on how we all were kept in the dark by our own mistake.

And secondly, YES i did, I still have the copper chunks machined, sized into the dimensions only waiting for the 9x.5 threading tool to arrive as i didnt had it on hand..

And Thirdly i dont personally own a lathe, but i have this whole thing about custom machining in my mind and a machine shop at my disposal..
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Old 03-21-2012, 12:37 AM #29
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Well let us know when you get done. I'm a copper freak. More copper = More better!
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Old 03-21-2012, 01:47 AM #30
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Quote:
Originally Posted by tsteele93 View Post
More copper = More better!
That's not necessarily true. A lot of people need a major reality check when it comes to copper. (This isn't directed at you TS - you just happened to be the person who brought it up and prompted me to finally vent).

Actually - putting this in its own thread:
I want copper copper copper! (well... maybe not)
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SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

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Old 03-21-2012, 02:27 AM #31
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Damn you and your damned logic!

Ok, I'm off to read the post. You have me interested with specific heat.
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Old 03-21-2012, 02:41 AM #32
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Default Re: 3.8 & 5.6 Copper Modules coming- heads-up

Specific heat and thermal concuctivity are two different things. I thought we wanted high thermal conductivity in the material around the diode to wick off the heat into the surrounding body. Thermal conductivity of steel (stainless) and nickel are 16 and 91 W/(m K) respectively. For copper it is 401 W/(m K).

Oh, I see what you are saying in your thread about copper!
My bad!
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