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

So, as many people can attest to, I’ve started sending PMs, and shipping out the springs.

I’ll ship the springs about 2-3x/week so we can get over this quickly.

I’ll continue sending out PMs.

Hope you use your springs for the best projects imaginable!

Yes please, to the UK. But first I need to hear positive confirmation that these are any good. Which, so far, I have not.

Sorry to have to say that.

I’d hoped that by now we would have plenty of facts and data, but it seems not. I did have high hopes.

The idea is great, but I need to be convinced about the execution. Well done for giving this a go, but for the next step some quantifiable and comparative measurements are required I think. Then you might have something desirable, perhaps with some small design changes for V2.

Please convince me that I need these…

If Tom Tom doesn’t want his I’ll take them

Well, we already have data and real life tests no?

It has a Vdrop of 52,9mV+/- 1,5mV at 6A, and DB Custom already has tested them in a Sofirn Q8, in which a bypass only yielded a 151 lumen boost.

The spring is capable of 13-14A alone.

What’s really interesting to me is how a spring bypass will be like, since this will likely be the first dual BeCu spring array.

In this array, it could carry quite well 20A+ currents without a spring bypass, which would be amazing.

Tom Tom seems to be making the rounds as a downer lately.

Yeah…. I noticed Sharpie, I mean Tom Tom; had visited several threads spreading ’cheer & good tidings’. . . :person_facepalming: . . :smiley:

Eh, he might be in a downer mood. We should just let him be. We all get this way sometimes.

You’ve probably noticed that lots of folks just like to vent on the forum. It’s not helpful or constructive to any of us, but it helps them to get things off their chest. You just have to roll with it and pay no attention.

Yeah. Was wondering why he posted on a lot of threads in the same manner :open_mouth:

One thing he did mention caught my attention though: the changes for the V2 batch of big springs.

There are three which could be done to lower resistance further: reduce the number of coils in the spring, increase the wire thickness to 1,1mm, and change the coating from nickel to silver.

The first one could be done, would help with spring compression, but reduce yield strength and increase the chance of plastic deformation, meaning contact resistance would be upped by quite a bit and lead to heat spots. Although insignificant compared to the total resistance, it would get rid of some the benefits of this method since the total resistance wouldn’t go down as much.

Increase the wire thickness would be very helpful, increasing yield strength and conductivity, but stiffness would be increase, and the force to compress it down would also increase in the same manner.
Contact resistance would also go down, but the chance of coils making a lateral deformation would be increase. There shouldn’t be a cost increase, not a significant one if we only go with 1,1mm wire, if the manufacturer can order it of course.

The only easy swap would be a silver coating, granting lowered contact resistance because of lower hardness, but also because of the higher conductivity of silver vs nickel(106% IACS vs 22% IACS). It would make the springs more expensive though. By how much? I don’t really know. I haven’t asked them yet because, vacation on their part.

However, increasing the wire thickness and removing a coil could work theoretically, but you’d need a 1,2mm thick wire, and that would boost the price by a non-negligible margin.

That would pretty much make it the best spring though. Good mechanical properties, and even better conductivity.

TLDR: Text explaining high conductivity springs, or how to make them even better.

So what you’re saying is “If you can’t handle me at my Tom Tom you don’t deserve me at my Tom E ”? :smiley:

Oh boy. You just opened a whole can of worms.

What if Tom Tom is Tom E’s alternate account, and is using it to vent and calm himself?

That’s exactly the thought I had. Has anyone seen Tom E and Tom Tom in the same room together? :stuck_out_tongue:

BTW, Tom Tom, if you’re reading this, yes, we are having a little fun at your expense. But we mean no harm. :innocent:

Naah, more like Sharpie has come back to life on BLF.

This is the second time you’ve said that. Do you really think it might be him?

Could be, I really have no idea though. The thought was suggested to me several months ago by more than one person… :smiley:
One of them was ‘sold’ on it…… :smiley: . :smiley: . :smiley:

Hmm… I just looked back at an old thread of his. His account has been deleted and all of his posts from that thread are gone, but some of the posts were quoted in other members’ replies. I’d forgotten how abrasive he was. Even then, there were some who appreciated his knowledge and tried to get past the sandpaper personality to work with him.

Yeah, he was somewhat a Jeckle & Hyde…… :wink:

I don’t know what you mean.

I can’t read whether you’re being serious or not. For those who don’t know the meme, it goes like “If you can’t take me at my [worst] you don’t deserve me at my [best].” To make the joke relevant, you change the words [worst] and [best] to suit the context. I was making a reference to Tom Tom’s mood versus his apparent knowledge (comparing him to Tom E whom I have much respect for).

Sorry, I don’t get most memes. I know that one, but don’t understand the name references. What do these two guys have in common?