If you have sanded enough between pill/spacer and between spacer/MCPCB you’d only need a bit of thermal paste and you are good to go.
It took me 2 attempts when I soldered the spacer to the pill, forgot the flux initially. Then I soldered the MCPCB onto the spacer and forgot the LED was still on there or thought it would stay. it detached and fell into the carpet. lol
Anyway, it is all soldered together and it rocks. No thermal paste at all, which is perfect.
ok, I have some 2mm copperbplate aswell that I could hole drill out and stack, but I guess with 2mm each it would need even more heat than the coins to stick? Or do you think my coins will be ok?
So like I said I filled the top recessed part of the pill and filled the 2 holes all with soldering tin so it's all flush and sanded it smooth! Do you think this was a good or a bad idea? I mean it should give a little more surfice area for the spacer to sit on instead of the thin edges only!
that's why I filled it with solder, so now the top of the pill is nice and flat as wide as the pill, nice surfice for spacer to rest on, do you think the solder will cool enough?
I'm slacking better put up some pics soon too, should I just upload random pics or add some story behind it too? It just takes so long to upload pics and then write about it too, that's why I never do lol, but I understand pictures says more lol
I am not sure. I’d leave it with just the spacer and pill sitting on each other. Once tighten you will have pressure making every thing stay in place. Plus the spacer is wide so there is no side movement and the lip help keep it stable.
Build it and see how it works. If the LEDs go blue they are to hot. Either way you won’t get long run times in small light with that much power.
I might make some new ones to get a better solder connection between the coins later or cut some 2mm plate and stack it bit for now I'll try it out! Each led won't get that much current anyway, so should be safe?
Are you running them in direct drive? Just think how hot a standard s2+ gets with 1 led at 3amps. It’s safe but I wouldn’t give it to just any one to use lol.
I wonder if you can forge the coins?
Forge? you mean in fire like a blacksmith? I used a small iroda butane torch heated up in vise and soldered on top and sandwich them together so excess tin came out! I use the blf a6 driver!
Oh I see! I basically did some forging today then haha, when I melted solder into the pill and smoothed it, you can actually forge some stuff with tin right?
I did it. Just for fun and without pretension to perfection - I did not even sand the surfaces of the coins.
The first pics in the thread. :)
I used 10 euro cent.
But it works very well - now in a S2+ Triple with Osram Oslon Square CQAR.CC 96 CRI (3500 K), Carclo 10509 and 1500 lumens. :)
After 30 sec. the temperature on the head is too high to touch it which means a efficient heat dissipation. This idea is not bad and an alternative if no lathe or spacer available.
sweet! looks similar to my spacer I'll put up some pics! However mine is not that even lol! I didn't even think about adding a smaller coin to fit into the pill, I just filled the recessed top part of the pill with solder and sanded it smooth!
You can’t even buy that much copper for that price of the coin lol.
It looks fine to me.
Yea you where some what forging the coins you could probably melt them down and pour them into a mould that is already the right size. But that’s just overkill.