Yes of course.
Wait until you see how many springs I usually order. 
I should start shipping LEDs only orders next week.
I’ll try to do it as quickly as possible, and as well as possible of course.
I have received the SST-20 FD2 LEDs.
Will start shipping them Monday for the LED only orders.
I have also ordered the 3rd Generation BeCu springs.
Anyone interested in getting the 3rd Gen BeCu springs now, post your interest below.
Hey, BlueSwordM, would you consider making some shorter springs sometime? I was working on a light today, and was thinking of changing the springs to Blue™ springs, but the “small” spring from you was still a good bit taller than the Qlite driver’s stock spring. I was looking at my Astrolux S42 a few days ago, and the tail spring is particularly pitiful looking. But I can’t change it either, because it is very low profile, and I don’t have any springs that will fit in its place. Even a Qlite driver spring is taller.
That is some good advice. Would have to make some smaller springs one day.
However, you may be out of luck with the S42 spring.
Your only option is a bypass, since it’s a press-fit spring, and soldering to aluminium is well, you already know.
I’m not worried about the press fit of the S42 spring. I would just make a copper round piece and solder a short spring to it - if I had a short spring available.
Huh, do you have a special kind of flux for this?
Because soldering copper to aluminium is still very hard.
Hope you can do this though.
No, I will make a copper round that I can press fit in place of the spring. The new spring will be soldered to the copper round.
Recently I took a peek at available solder fluxes for steel, as I often solder to batteries. Found this strange and not expensive FNA (ФНА) dubbed flux flasks for sale:
The compound is claimed to be effective on aluminium.
:-)
Edit.-
That flux called FNA (ФНА) is the same flux I use in batteries (Goot Super soldering flux, HWY-800, etc.) and works well on steel, nickel, and of course copper but I definitively won't say it is good for aluminum.
Thu, 06/20/2019 - 01:06
Barkuti, didn’t you already have some experimentation going on with trying to solder to Aluminum a while back? How did that turn out? I can’t remember.
I got FTKA/ФTKА and F61A/Ф61A fluxes back then, and experimented just a bit. Soldering over aluminum foil could be attained relatively easy. But what I originally had in mind was soldering to a chunk of heatsink and some hollow pill, and that was :facepalm: a whole different story. My attempts were mostly unsuccesful. I got some success on the heatsink by pre-heating it in an oil bath inside a frying pan, then soldering over some de-anodized and fluxed part of it. But overall never got really strong joints on the heatsink, I think that had to do with the heatsink alloy. The fluxes emit nasty fumes, and they may be hard on the iron's tip. Due to the overall difficulties I gave up on the matter at that point.
Maybe my bar was very high to start with. O:)
:-D
Thu, 06/20/2019 - 02:29
I’m in for:
10 SST FD2s
No more sorry, as I said in Post 147.
Only springs are currently available.
After the springs come in I might be in for a portion of whatever leftover you have, going to wait to order though
No problem.
Here are the semi-final specifications:
Large BeCu spring:
Spring upper diameter: 6,50mm
Spring base diameter: 9,0mm
Spring thickness: 1,0mm
Spring height: 12,0mm
Total number of coils: 5
Plating: Copper + silver
Small BeCu spring:
Spring upper diameter: 4,40mm
Spring base diameter: 5,80mm
Spring thickness: 0,8mm
Spring height: 10,5mm
Total number of coils: 5
Plating: Copper + silver
Hi BlueSwordM, could I please get 20 large and 20 small gen 3 springs with my LEDs?
No problem then.
Will add you to the list.
List has been updated:
We are at:
751 large BeCu springs
650 small BeCu springs
Are you still ordering springs this week or are you going to wait for more participants?
Already ordered the springs.
The springs should start being manufactured this Monday.
I think two things are different for this GB:
1. I’ve already sold a lot of springs by now. So, I’ve saturated a large part of the market already probably. I’ve sold over 8000 springs, so, you can guess what happened.
2. Since the springs are quite a bit more expensive now, people are waiting for me to have the springs to take the risk and pledge in a certain amount.
I mean, they are over 50% more expensive than the 1st gen spring.
I’ve ordered the springs anyway even if we are only 1/2 there to 1500pcs each.
I need to push my skills to the max to prove the worth of these springs.
I also think the enthusiast part of the market has already been filled.
Not everybody can actually solder springs, or wants to.
Unlike LEDs, the improvement isn’t instantaneous, so reflowing new springs vs new LEDs is much less rewarding, even though I think good contacts are still very important.
I’m planning to start light modding services now that I’m experienced enough and have acquired enough materials and supplies now.
Excellent. Thank you for everything.