Update! Heatsink/spacer from coins? How to make a spacer for s2+?(updated with pictures!)

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FPV
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you guys rock, these are really nice spacers!
good craftsmanship

hannesremo
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what do you think about the filled pill? Just an idea I had

hannesremo
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thank you! koef3 did a better job than me, bit I'm happy with mine too, should be fine lol!

FPV
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It is a good idea, but there are basically 3 approaches
1) fill pill with solder and sand flat
2) put smaller coin at the bottom (16mm) so spacer can sit inside pill
3) sand down entire pill and make it flat (approx 20mm), no need to fill or use smaller coins at the bottom

Either of them should work.

kiriba-ru
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FPV wrote:
I checked temp with an infrared thermometer, coins vs copper spacer (from kiruba). there was almost no difference with a FET driven S2+ (XML2 U4). Could also not feel a difference while the light was in my hand (subjective).
I have not done the test with a triple or quad setup yet, but can do it once I build them.

I wonder, what is the reason using spacer with 1 led config?
Bottleneck of S2+ is brass pill. To see reasonable difference between copper and brass you should have some more conductive material under. For example, S3 with integrated shelf.

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FPV
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I built a mule and needed a very large spacer for that, hence the 1 LED setup.
You are right, the difference will be more obvious with more material and multi-emitter setups. I forgot to measure the triples I had, unfortunately.

I put your excellent copper spacer in a triple but I didn’t compare with a coin spacer. At some point I ran out of time building spacers and all my EUR coins are also used up Big Smile

Another advantage is that kirubas copper spacers can be polished easily, my coins always looked like a mess. Not as nice as what this thread has produced!

everydaysurvivalgear
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I wonder how my aluminum spacers will far heat wise.

cadmium
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Try brass plugs for PEX pipes as shown in this thread.Convenient budget spacer for Triple EDC found… @ Lowe’s!

They don’t cost too much more than stacks of coin, packs of 10 on Amazon US are $13.49, and is cheaper if you buy more at a time.
Amazon PEX Plug

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koef3
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Just make a new spacer for a 'special' project - of course with the proven euro coins. smile

 

 

62 grams of pure nordic gold 50 and 10 cent coins... cool

 

In daylight (MCPCB side shown) it looks even more beautiful, as decorated with 'gold and silver':

 

My LED tests: Cree SC5 based LEDs (WIP!)  ---  Nichia 319AT 83 CRI - Optisolis (3000/5000 K) - Lumileds Luxeon LXML-PWD9 - Luxeon MZ 5700 K (90 CRI, 3 V) - Luxeon V (CSP) 4000 K 70CRI - Luminus SST-40-W (+ dedomed) - Cree XP-L2 (+ High CRI variant) - XHP35 HI - XHP70.2 - CXA1304 COB - OSRAM OSLON Black Flat HWQP - SYNIOS DMLQ31.SGLE UW Q8WP - unknown 5050 LED ---- finished: JAXMAN M8 (Mini C8) HighCRI Triple

FPV
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Very nice work! This is a slightly larger spacer, keen to see the special project soon!

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