RGV Adjustable Sled Mount Heat Sinks - Feeler

I noticed that too...

That enclosure is sweet!

Yes, I did make the one for the 7 color as well. For that one i used a hand made plexi glass mould, gives it that high gloss finish. Thank you for your kind words. James

P.S. , I'm using a silvered carbon fiber, plenty strong an cost effective @ $25 for 50"x40" roll. I prefer to use carbon fiber in my builds bc there is no heat transfer from your hands to the heatsinks making them less efficient. Plus it just looks cool:yh:

Almost dialed in

I am almost dialed in.




I pritty sure I can make them all with the same basic design. The only difference being the green is a set screw mount for the module. This pic shows the main pieces combine to make one.



The same cut of the heat sink and mount is used in each case to stay out of the way of the sled and other sinks. I will finish this prototype as is and get more material to make the final design.

Size wise it should all come in at a little over 2" (50mm)wide, 1.25" (32mm)tall and 3 (76mm)" long. give our take a little.


Cheers,

Ryan

There is a lot of good stuff going on here
@sightfx you have answered my query on the other thread with the second to last photo, I would agree with Jay that you could afford to go a bit smaller but nice job, good luck with selling them.

Regards rog8811

One thing I am hopping on is that all diodes give out the same orientation depending on their rotation. If so I can put markings on the press fittings to show how to orient the diode before you press them in. If not then maybe a nut fitting would be better but it adds to the cost

Thanks Rog8811,

Your great work has inspired hours and hours of shop time and allot of fun.

I agree with you guys that the diameter can be trimmed down a bit. it can come down to an 1 inch (25.5mm) at least.

Wow... looking really good so far!
Jay

The Light Engine

Version 1.0 is FINISHED!

Check out the pics:

This baby needs a name It goes from 0 to light speed in under 10us lol

3 sides:



I am thinking of selling them in two ways.

Singles for $50.


Full Kits for $120.


I just noticed the pics are missing a spring. Anyway you get the idea.

Let me know your thoughts, Ideas, Changes. keep in mind I am working on another design all together for smaller builds.


Cheers,

Ryan

Oh and I should have some more metal comming in tomorrow so I could have some ready as soon as Monday.


-SightFX

Please give me a little more details on those bad boys! Those 'Adjustable Sled Mounts'...

Are the red and blu-ray ones a press fit for diodes?
How does the green module mount? Set screw?
Do all three have the centering 'nipple' that fits into the sled?

The only drawback I can think of, is if it becomes necessary to rotate the red or blu-ray diode...

:thanks:
Jay

jayrob said:

Are the red and blu-ray ones a press fit for diodes?

Click to expand...

Yes that is Correct. A direct press fit is the next best thing to 1 big solid diode with fins (ok peltier is better but for the cost...)

here is some information I put together on that:

Whenever two materials are in contact they have a surface resistance to what is called Thermal contact conductance. With Resistance being a bad thing here you want the fewest number of materials contacting each other to transfer the heat from your laser diode into the air. Other factors that reduce thermal contact resistance and improve thermal conductivity are surface area and pressure. These press fit heat sinks are an easy and affordable way to provide great pressure and ensure all around surface contact directly from your diode to the heat sink then finally maximized surface area contacting the air around it with these deep grooves.

jayrob said:

How does the green module mount? Set screw?

Click to expand...

yes the Green Module mounts with a set screw mount. This can also be done with Red and Blu Ray in an Axiz module if desired.

jayrob said:

Do all three have the centering 'nipple' that fits into the sled?

Click to expand...

Yes the mounts are the same for all 3. I have made an improvement in that area that will allow you to screw the mount to the sled with a threaded nipple.

jayrob said:

The only drawback I can think of, is if it becomes necessary to rotate the red or blu-ray diode...

Click to expand...

I agree, I am hopping that the diodes polarity is the same depending on the rotation between all diodes or at least the same color dioldes. If that is true I wll simply mark where the square knotch and V notches are to be when you press the diodes in. I will do some experements next week with what I have and let you know. I would assume that the polarity will be the same but if it is not than an all set screw set and aixiz modules will be the solution.


Thanks,

SightFX

Sweet set up... I will be ordering soon.

I just wanted to make sure of those questions. I think that maybe the 'AixiZ modules with set screw' may be the answer to the ability to rotate diodes.

Also, since you are custom making these. I wonder if I could get mine with heatsink/diode mount parts smaller in diameter than the sled mount part. (Maybe even the sled mount parts with a small flat spot) That way the sled mount parts can act as the 'base' or 'feet' to rest the entire assembly on. And the module/heatsink/adjustable parts will be just hanging on their own weight, with nothing else touching them. That way they will stay in adjustment...
Jay

Yea Jay,

from your suggestions I have been making some of these just smaller than an inch and using a one inch washer for the sled mount. I found it to be too small for the set screw heat sinks. the bigger hole encroched on the adjustment screw holes and made the sink too slim in places. I had to make it bigger(1 inch exactly) I think the best solution is to put some sort of stand offs under the sled.

BTW the next version will not have this issue or the issue with rotation. It's only draw back is that it will not transfer heat away from the diodes as well so it is targeted for pocket builds and not meant to be high powered diodes running at long durations. It will only add about 1/4 inch to the width and you will get an adjustable mount and the same threaded nipple as the other mounts. (Threaded Nipple - sound like a dive bar in an industrial park)

Chears,

SightFX

I'm leaning toward your next 'pocket sized' version... (either version actually, I just want to see what you come up with before I decide)

Great work!
Jay

I'm tempted to get a full setup ... not sure yet though.

-Kendall