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Hex Labby Heatsink

Ra1nfade

Ra1nfade

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I had some extra time in the shop so i decided to get creative :) The coolest part is a was able to salvage some scrap aluminum somebody had made a paperweight earlier;) It was a piece of 6061 t-6 hexagon stock that i drilled out to house and AixiZ module and the milled fins into the sides.

When i get some cash together i figured i might be able to make a cool labby out of it:D

IMG_0683.jpg
 





Hey, that doesn't look to shabby at all!:gj:
How are you going to secure the module inside the heatsink?
How snug of a fit is it?

I hope it makes it into a working laser some day.
 
Do you have any idea where one can buy hexagon stock?

I only have round/bar stock to work with, I would like to make something like that, but it will be alot easier to have a hexagon shape to begin with rather then me milling round/bar stock into one.
 
anselm said:
Hey, that doesn't look to shabby at all!:gj:
How are you going to secure the module inside the heatsink?
How snug of a fit is it?

I hope it makes it into a working laser some day.
Click to expand...

:thanks: So do I ;) I just finished a custom 445 build out of a MagLite XL100 so it gonna have to save up for a little bit. As far as securing it goes its a little loose (I.D. is 12.07mm) so put a 6-32 set screw in where the module would sit (much like the heatsinks for flashlight hosts) :yh:

GBD said:
Do you have any idea where one can buy hexagon stock?

I only have round/bar stock to work with, I would like to make something like that, but it will be alot easier to have a hexagon shape to begin with rather then me milling round/bar stock into one.
Click to expand...

I just picked mine up from a scrapyard (dirt cheap and lucky) but most places selling aluminum stock (flatbar, round, etc..) usuaully carry hex stock. :yh:

Hope that helps and it is definately easier buying hex than milling round into hex:beer:
 
As far as securing it goes its a little loose
Click to expand...
Hmmmmm.... heatsinking relies on good contact between surfaces.
If there's ANY gap, it doesn't work. Air isolates.
Best thing would be to use thermal grease to fill that gap.
 
You are right i should use thermal grease :yh: let me clarify on the looseness of it though, since the AixiZ module is machined their are tolerances on those parts. I took a measurement of the module and custom bored the heatsink to match the difference between the to is less than .03mm (.001") which diametrically means the difference of .015mm (.0005") so its really close:D but like you saide air insulates so i will definately be using thermal grease to make sure it is maxmizing the cooling effect. ;)

Again thanks for the advice i will put it to good use:beer:
 
In addition to the thermal grease, drill and tap a small hole in one of the grooves and use a hex set screw to increase thermal coupling.
 
There's a set screw in one of the grooves but from the pics you cant see it. Its pretty small its a 6-32 UNC set screw and uses a .050 allen wrench. So the module stays in place and so the module OD contacts with the machined ID.
 
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