BLF Interest list for Very High Current Beryllium Copper springs Pt1(ENDED)

The list has been updated again.

I hate to say it again, but I am absolutely impressed by the feedback of the community.

Also, what kind of name would you like for this spring?

I have thought about the BLF ULPS, being the BLF Ultimate High Power Spring.

Is that good name? What do you suggest?

Finally, I will test the conductivity of the spring when I get it, and how well it holds up under stress.

Name??? Why would you name a spring? :laughing:

Call it the ‘BSM/blf Special’

 :+1: 
 :wink:

Problem its that if you use a big spring ( if driver can like fet+1) in both sides theres will be too tight for the battery.

I preffer gold color, but its ok :wink:

In drivers that can use 9mm base spring theres will be better to use in driver side and in tail side also but its too tight So
 what about a copy of fasttech carobronce spring but in Beryllium Copper and gold plated?

I think its a very usefull size for both: driver and tailcap.

Question: the elasticity of this Beryllium Copper 38% is good? are not very soft?

Thanks for this BlueSwordM :wink:

1. Hmm I have not thought about a copy of the Fasttech Carobronze spring, but with BeCu 38% IACS.

2. The elasticity of 38% IACS Beryllium Copper is better than 45% IACS as it is less rigid, and has a lower chance of deflection and collapsing.

You are welcome :wink:

Also, guys, I do not know if I understood it well from one of my suppliers or not.

But APPARENTLY, I hope I am not wrong, but holy crap, I hope I understand it well, the supplier said that 2000 big springs of Beryllium Copper 38% IACS would cost, with DHL shipping:

350$US. 350 AMERICAN DOLLARS. NOT CANADIAN DOLLARYDOOS.

350$US. The cost price per spring sold, with shipping, could probably be lower than 0,30$US!

The price IS NOT FINAL

I will check with my supplier if the price is correct or not. If it is, then hallelujah!

Also, BTW, they have accepted to send 10pcs sample for 100$ US. So as expected.

I will test the samples when they get there, and see what kind of resistance they have, and comparing them to djozz’s springs testing.

Edit: The sample will add to the final price:

350$US+100$US = 450$US

Still, that is a crazy good price.

This is sounding better & better BlueSwordM!! Thank you again!! :beer: . :slight_smile:

Yeah it is getting better and better.

If that price is correct and the springs are good, you should calculate the costs for those samples within the final price.
It’s only a small increase.

Thank you for the mention, I will add it to the post.

I think that even though were getting charged crazy money for the samples, it’s definitely worth while. If the price is $350 for 2k and not per thousand that still leaves us getting a great deal.

I have only asked for 2000pcs though. Not 3000pcs, which includes the 1000 small springs. I do wonder what the price will be then.

We are at 1131 big springs and 592 small springs.

Interested in 10 big an 10 small springs

If there is a change to get two sizes, I’m in for 25 off each.

15 each :+1:

If the price per spring is more than double for quantity of 1000 versus 2000, then it is ridiculous to buy 1000 and pay actually more for fewer springs. For instance, if the price is $0.175/ea for 2000pcs but it is $0.50/ea for 1000pcs, the real total cost is $350 for 2000pcs but it is $500 for 1000pcs! There is no sense paying more for the privilege of receiving less! I’m not saying this is the actual cost per 1000. I’m just saying that if the difference is double or more, it doesn’t make sense at all to do it. From that, you can calculate the highest “premium” that would make any sense to buy, being $0.345/ea for 1000, or just under double price. Then again, you’d still have to be silly to pay such a difference, IMHO. But, if we use that number, the total cost for 2000 lg + 1000 sm springs can’t be more than $350 + $345 (+ $100 for samples) = $795 TOTAL! That makes the average price of a spring just a bit over $0.26/ea plus shipping from Bluesword to each of the group buy participants. The more you buy as an individual, the lower your per-spring cost will be!

Not picking on you. I know there are valid reasons for buying just a few rather than a lot more. But, according to my calculations above, based on what BlueSwordM has said about pricing so far, your shipping will be almost double what you’re paying for the springs themselves for such a small quantity.

Since they are two different sizes, and neither is a stock item, I would suspect the 2000-part price break is per each size, meaning you don’t get the price break on the small ones just because you’re buying so many of the large ones. Still, it shouldn’t be too bad, according to my calculations.

Yeah
it would be interesting to ask them what would be the next price break.

@DavidEF, the reason I was asking lower than 0,50$US per spring was to cover shipping costs. I was initially going to to a price of 0,45$US per spring for less than 50pcs, and 0,40$US per spring between 50pcs+. In relation to 1000 springs costing the same, I will point you to this message:

Hello BlueSwordM,

I have applied and asked materials engineer:

In order to have a good start of cooperation and keep that long- term.

Within 2000pcs, we will still charge as samples fee for USD308. But the shipping fee by DHL will be different as below:

1000pcs:USD32

1500pcs:USD36

2000pcs:USD40

Thanks for your cooperation. The reason for 1000pcs and 2000pcs same cost is because of MOQ of Beryllium Copper C17530 38% IACS at materials supplier.

So order 2000 pcs, price will be the same for both of us. If order combine 2000 big springs and 2000 small springs, price will be lower per spring than only 2000pcs springs, because bulk and less shipping orders.

Price sample of 20pcs has been agreed by engineer, so USD100 for 20pcs.

Pls kindly let me know if any questions.

From what I have understood and what you read, the price is literally the same within an order of 2000 springs because of the minimum order quantity of the beryllium copper needed to make the springs. Above that, the price will follow a decreasing inverse exponential manner as in all bulk purchases. So, I am officially hyped right now :)) Edit: Is it normal that I can't put the text in italic or bold? Strange.