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FrozenGate by Avery

My 445nm (lab) build

sorry holder, all i have to say is very poor heat sinking and the diode probably wont last time
 





magonegro said:
Nice build, I like very much the idea of a metal case. Just one thing... It seems like there are little contact between aixiz module & alum heatsink, lot of the aixiz module is exposed not being heatsinked, does this feel hot to finger? Remember, we don't like very hot things near the diode.
Click to expand...

There is actually more contact than you can see..the Aixiz screws tightly into the aluminium mount and the point where it screws in is exactly where the diode is, couple that with the thickness of the aluminium, and then its bolted to a metal case, and that case is activly cooled, it actually keeps quite cool. I hear what your saying though, it doesnt seem to affect it.

andy_con said:
sorry holder, all i have to say is very poor heat sinking and the diode probably wont last time
Click to expand...

The heatsinking is getting finned at the back of the diode to draw cold air through them.
 
andy_con said:
so...

still not heat sinked properly
Click to expand...

So? what do you mean "so"? , drawing cold air through the heatsink fins cools the heatsink....cooling the diode? or is my fundamental theory behind heatsinks wrong?



I disagree.


I'll take temps tonight and we'll see.
 
im sorry what fins....

looks like your cooling the wires to me

xen721.jpg
 
He says hes going to add fins they are not there yet.
I suggest you use a cpu cooler
DSC02734w.jpg

i like to use one like this. i can easily cut them into 4 heatsinks.
 
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but where would one add fins?

the fan is blowing over the wires not at the diode.

but hey who cares its not my build
 
ped said:
There is actually more contact than you can see..the Aixiz screws tightly into the aluminium mount and the point where it screws in is exactly where the diode is, couple that with the thickness of the aluminium, and then its bolted to a metal case, and that case is activly cooled, it actually keeps quite cool. I hear what your saying though, it doesnt seem to affect it.



The heatsinking is getting finned at the back of the diode to draw cold air through them.
Click to expand...


The fins are getting added tonight.

andy_con said:
but where would one add fins?

the fan is blowing over the wires not at the diode.

but hey who cares its not my build
Click to expand...

The fins will be to the left of the diode mainly, and a couple to the right...and yeah i know its not your build...and i welcome criticism...but make it constructive please? back up your argument, and if you cant...keep stum .
 
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kiyoukan said:
He says hes going to add fins they are not there yet.
I suggest you use a cpu cooler
DSC02734w.jpg

i like to use one like this. i can easily cut them into 4 heatsinks.
Click to expand...


Yeah its gonna be something along those lines...just smaller.
 
ped said:
The fins are getting added tonight.



The fins will be to the left of the diode mainly, and a couple to the right...and yeah i know its not your build...and i welcome criticism...but make it constructive please? back up your argument, and if you cant...keep stum .
Click to expand...

yeah sorry i know nothing about lasers...
 
andy_con said:
yeah sorry i know nothing about lasers...
Click to expand...

Dont be childish, thats NOT what i was saying, i said i welcome criticism, but be constructive....do just say that wont work and then bugger off! offer suggestions or help Mr "laser_Man" ! , this a community forum where we help and discuss with each other a hobby were passionate about. Join in?
 
ped said:
Dont be childish, thats NOT what i was saying, i said i welcome criticism, but be constructive....do just say that wont work and then bugger off! offer suggestions or help Mr "laser_Man" ! , this a community forum where we help and discuss with each other a hobby were passionate about. Join in?
Click to expand...


sorry holder, all i have to say is very poor heat sinking and the diode probably wont last time
Click to expand...


sorry i thought i did say... its not heat sinked properly.

if you want the diode to last heat sink it properly, these 445 diodes give out alot of heat
 
andy_con said:
sorry i thought i did say... its not heat sinked properly.

if you want the diode to last heat sink it properly, these 445 diodes give out alot of heat
Click to expand...



Yeah i hear ya, thats why we were discussing the finning, thats what im gonna do..."fin" the back of the diode as much as i can and then probably construct a kind of "tunnel" to channel the air over the fins, i'll then give the diode a good run and take before and after temp readings...once i have that data i'll post it up here along with pictures then people like yourself can see what you think, and offer suggestions
 
the entire aixiz case should be heat sinked not just the end.

like so

20100708_004.jpg



you have more unheat sinked than heat sinked

ziwt44.jpg
 
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