Stacking chips lol

I have some spare i wonder how much shipping is from here. If i can sneak them in as a letter. If some one knows let me know please?

I found a shop that sells aluminum in good sizes per meter instead of having to buy 3m minimum. Its round stock i got some 32mm round stock for X6 spacers its 1 meter in length. For the s2+ spacers i use 2.5 by 2.5mm flat bar and round it of but its only 3mm thick.

You can also try brass washers they are common use for spark plugs i think?
I just googled found an Ebay listing. You would want the ones with the smallest internal holes.

Brass washers

hannesremo, you may want to take a look at this
http://budgetlightforum.com/node/45343

Before I found kiriba-ru I did the coin mod, there are some amazing coins out there that are a 100% match with the sizes you need.

UK 1p/penny is 20.3mm
EUR 1 cent is 16.25mm

that’s all you need, remove the top part/rim on the S2+ pill if you don’t want to use anything with 16mm.

Yea the end caps used for plumbing like the ones i used on my BLF project they would also work and you can cut them to size.
They have copper ones also i think.
https://www.reece.com.au/plumbing/products/pipe-and-fittings/conex-banni...

If you get pennies make sure to get old ones, there isn’t much copper in them now! I believe it’s pre 1992 they were copper, now they are just plated steel. Apparently when they stopped them they were worth 1.5p in copper………if only we knew lol!

They do stick, but you’ll need more heat.
coin – solder paste – coin – paste – coin, etc
then hit it with a blow torch in your vise

Well, I just went through our coin collection (saving up for years – 1p 2p 5p in a bottle) had 760g of pure copper coins, 1p and 2p. Easily done with a magnet

hannesremo wrote:

Well just got rhe coins soldered together!

A lot of heat and cleaning with acetone first did the trick!

Would you mind posting a few pictures while you are going along with the mod?
The other day I was thinking about going the same route with my S2+.

bilakos10 wrote:

hannesremo wrote:

Well just got rhe coins soldered together!

A lot of heat and cleaning with acetone first did the trick!

Would you mind posting a few pictures while you are going along with the mod?

+1 here
Although I have a pill and a spacer from kiriba-ru (hence my post above) I will probably need a 3rd spacer but I’m having difficulties to get a “proper” pre-made material. So maybe this method can help a bit!

How many MM thick is the spacer?
Edit this would depend on the optics being used.

regular s2+ spacer is 6mm thick.

For pilled flashlights you can make spacers not so precision because you can compensate wrong height just by screwing/unscrewing pill.

I made different heights with coins depending on the light I wanted to put this in. protected vs. unprotected battery.
One S2+ has 8+mm spacer for shorter, really tight batteries. Another only 5mm because I sanded away a bit too much.
Also depends on the springs you are using, which driver, what tail cap, etc

I have done two spacers with coins and it all went well, but then I thankfully found kiriba-ru and his selection!

While making coin spacers is a ton of fun (“I did it on my own”) – you would also have to account for sanding time, soldering, drilling the whole thing and then cleaning. All in all, it is fun to do and a great workout but an actual copper spacer for a few dollars is probably the more economic solution.
Coins however also allow to alter the size of the coin and make different spacers easily – you could combine 16, 20, 15, 20 (and so on) and it looks like more like a heatsink rather than a spacer.

Yea but some time you want some thing done now not in a week or two. Or is that only me? lol

I agree, if someone is pressed for time or has enough free time on their hands… it is the way to go!

I would leave it and see how it handles the heat.

hannesremo wrote:

yeah finished them just now , lots of sanding, soldering, cleaning and drilling but fun! However I never sanded them down for soldering, only the contact surfice to pillband led board! Should I sand the solder surfice aswell? And redo them? I mean the coins sit perfectly on top of eachother but dont know? Maybe the solder filled the gaps lol?

I did this a while back with some old pennies. I sanded them all flat first, it was a pain in the ass but I was actually able to turn the stack on the lathe afterward.

FPV wrote:

Before I found kiriba-ru I did the coin mod, there are some amazing coins out there that are a 100% match with the sizes you need.

UK 1p/penny is 20.3mm
EUR 1 cent is 16.25mm

that’s all you need, remove the top part/rim on the S2+ pill if you don’t want to use anything with 16mm.