DIY Diode housings

[buffo]

Those do look nice! How much did they cost you, after all the machining? Any chance of a group buy? (There might be a few people here that would be interested...)

Adam

[allthatwhichis]

Need to find a spot for the LASORB...

[Frixxion]

thanks for the positive response . Material costs were very low, I bought 120 mm of 40mm diameter aluminium rod and I was able to make 3 out of that. The rod cost me about 14 euro's but it did take about 4 hours to make these .

At first I thought that the work on the lathe would take the longest, but the milling took waaaaaaaaaaaaaaaay longer . I think that is because I had to clamp in the thing over and over. I also broke a 4mm mill , so had to use a 6 mm mill but that proved to be better. 6mm mills are way stronger than 4 mm's so I didn't have to be as careful .

If some people are interested , send me a PM or open a group thread. If there are enough people I might sacrifice an evening or two to make these for you

[White-Light]

Very nice!

This is going to be the custom car of projectors.

[Doc]

Deal Extreme do these for like $17US ,they will accept an Aixiz module, or as I found out too late (after I'd pressed my diodes into the Aixiz modules); the modules that are inside of these things are made from nice thick brass and have a screw down diode retainer. Doh.

[dave]

Got any more details on these Doc?

Deal Extreme do these for like $17US ,they will accept an Aixiz module, or as I found out too late (after I'd pressed my diodes into the Aixiz modules); the modules that are inside of these things are made from nice thick brass and have a screw down diode retainer. Doh.

[Doc]

Here's a direct link to them

http://www.dealextreme.com/details.dx/sku.9865

Delivery took about 10 days to the uk (free delivery). The driver is TTL, so not much use, but they're worth the cost just for the heatsinks.

[Firestarter]

I can just agree ... ordered one myself and the heatsink takes the aixiz pretty good.

But ... there is a con:
The heatsink is just a big block with only small ribs. In my opinion the whole block needs to heat up before the heat actually hits the cooling area.

There are better ways to cool your module for about the same price.

I would settle for the heatsink advertised by frixxion as it has a gap at one side where the bolt sits and rips around the body so cold air can actually get close to the module and heatshift can work.

There are even better heatsinks for as low as 15$ e.a. but i don't want to highjack this thread.

Anyway .. your heatsink looks very nice .. if i need additional ones for my projector i'll try them.

[keeperx]

Pococino..

heat does not work like that...

That axiz module works very well..

I have a solid block heat sink on some reds that are pushing high mA's and it works great.

http://www.photonlexicon.com/forums/...1&postcount=25

http://www.photonlexicon.com/forums/...1&postcount=41

[buffo]

Actually Alec, Pococino is correct. Heat does work like that.

The Axiz module may be adequate, but it would be much better if the fins were milled deeper into the block. He is also correct in that the entire block has to heat up before it begins to shed heat through the fins. (Though it will begin loosing heat to the baseplate almost immediately.)

The reason your diodes work even though they are mounted in a solid block is because they don't generate all that much heat to begin with, and because aluminum is a very good conductor of heat. But don't confuse something that "works" with something that is ideal.

A light weight heat sink with a large surface area is *far* superior to a heavy weight heat sink with a small surface area.

Adam