@Hoop, copper is hazardous in the form of a powder, like any metallic powder.
That’s what I was referring to, not copper itself.
I mean, it’s not beryllium levels of toxicity or any nickel salt, but it’s still dangerous, but not toxic.
Also, I would like to wonder why I actually wrote that copper oxide powder is quite reactive. Far from it.
I just meant that copper powder is reactive, like mentioned above.
It’s quite inert actually, and doesn’t react with living tissue at all.
No problem then. It’s just that in my laboratory work at college, our professors asked us to be careful when handling metallic powder, as not only would it be a mess to clean it, but they are flammable since they have extremely high surface area to air, but can also be inhaled, so we should always work under a fume hood.
Sorry if it was confusing. Basically the LED’s are available but they are not “reserved”. So they can be sold to someone else at any time. Once sold it is unlikely I will find more for some time.
So, guys and gals, now that I’ve shipped all orders, and reshipped some orders that were taking too long to ship, I’m ready for the 3rd gen spring groupbuy.
Here are the springs specs.
Large BeCu spring(Rev 3.0):
Material: Beryllium Copper C17530 38% IACS
Spring upper diameter: 6,25mm
Spring base diameter: 9mm
Spring thickness: 1,0mm
Spring height: 12mm
Total number of coils: 5
Plating: Copper(25 um)+ silver
Small BeCu spring(Rev 3.0):
Material: Beryllium Copper C17530 38% IACS
Spring upper diameter: 4,25mm
Spring base diameter: 5,75mm
Spring thickness: 0,8mm
Spring height: 10,5mm
Total number of coils: 5
Plating: Copper(20um) + silver
Because of the thick copper plating to give a large boost in conductivity, the spring is again quite a bit more expensive than even the 2nd gen silver plated version.
Now, we are at 0,46$US/spring.
Express your interest below.
Will make a 3rd thread for it soon enough, along with some sweet sweet FD2 SST-20s. Will also be making budget phosphor bronze springs, probably at 0,15-0,20$US/spring along with some new additions.