【convoy】

oweban · 2020-05-23T06:52:44.000Z

It kinda pushes them pretty hard. My guess is that Simon goes for reliability over maximum power; same way that car manufacturers detune engines so they’re reliable. Makes sense; I’m just glad there’s a way we can do that if we want.

oweban · 2020-05-23T07:16:33.000Z

Different sense voltage on the 6A drivers (0.06v instead of 0.05v).

I’m not sure what size is on that driver though; I’ve got some coming but they’re not here yet. Someone else may be able to enlighten.

Simon_Mao · 2020-05-23T07:57:02.000Z

oweban:

Simon, can I PM you my order number to extend the Buyer Protection? I thought I sent a request through AE but don’t know if it got there; apparently my order will “close” in 2 days.

pls tell me the order number in PM ,my friend

Simon_Mao · 2020-05-23T07:59:21.000Z

Musaka Despa:

oweban
Thank you so much for a wonderful explanation, dear friend! :+1:

hodor:

it’s good to hear Simon is now using some nice high current springs on his drivers. Hopefully he’s done the same with the tail springs.

Dear Simon!
Tell us, please: do you plan to use these beautiful springs for tail switches?
How to buy a flashlight with these beautiful springs on tail switch?

We love your flashlights very much in Japan, we even have our own little offline community, we go to the mountains with your flashlights. We love you, dear sir!
It’s very good that you are improving your flashlights in order to achieve the highest heights in your production!

If you have such a requirement, I can replace the spring for you before shipping.

Simon_Mao · 2020-05-23T08:00:22.000Z

Musaka Despa:

oweban
Tell me, please, why is Simon himself not doing this? After all, this is just a simple way to increase the short-term power of the flashlight at the maximum level.

Because no good factory was found before, or the flashlight did not use a particularly large current, it will take some time to completely replace the spring.

Barkuti · 2020-05-23T08:26:18.000Z

oweban:

…

Punch in 5A and 0.01 Ohms gives us a sense resistance of 0.05V.

…

… a sense voltage of 0.05V.

Musaka Despa:

…

I think I found the resistor that you mentioned!

It is it?

2512 imperial? Wrong size.

∅22/20/17mm driver pictures can be found here (NTC resistor or temperature protection removal thread):

The ∅17 and ∅20mm drivers use a 1210 imperial size sense resistor (3.048 × 2.54mm theoretically). The ∅22mm driver uses a bigger chip resistor, and can be clearly seen that it must be a 2010 imperial (a 2512 looks like it would fit, though).

oweban · 2020-05-23T09:20:27.000Z

Sorry Barkuti, was typing on my phone while doing the shopping daughter going crazy so I was bound to make some mistakes. I’ll go edit it now so it’s accurate for future reference.

Agro · 2020-05-23T11:58:57.000Z

Barkuti:

A few minutes ago I finished modding my ∅17mm SST40 biscotti clone drivers, one of them will (hopefully) go in an old, modified Thrunite T20T and for this reason I removed the stock spring (there’s barely place for a copper top cell driver contact inside that tiny flashlight).

So I grabbed a couple BlueSwordM’s springs, 3rd and 2nd gen big springs, and proceeded to make a crude voltage drop over the spring test against the new springs Simon is using in the biscotti clone drivers. I used my precision power supply tuned at 5A, with alligator clamps attached to the ends of the springs as best as I could. Connecting at the base of the springs was easy, the top gave me some difficulties, and I placed my multimeter’s probes as best as I was able (near the base beside the clamp and as close to the top as I could make a decent contact):

Newer wide top spring from Simon: in a first run I was getting 60 - 65mV. Tried two more times, got values jumping up and down up to 70 and below 60mV. On average, I give it a rough score of 62 - 63mV of drop.

BlueSwordM’s 3rd gen big spring: could see some figure above 60mV, but all around 57 - 58mV give or take rough drop score.

BlueSwordM’s 2nd gen big spring: this was fast, could clearly see figures settling around 45 - 46mV rough drop score. Bear in mind the 2nd gen spring has one coil less than the 3rd gen, and it somewhat deforms once compressed.

Now, despite the limitations of the test and the possible percentage of error, all I can say is the stock springs coming with the newer drivers are awesome! Let’s wait to see what Simon has to say, but they must be made of C17530 or something with similar IACS conductivity to perform this good. It’s either this or I did some blunder with my procedure, although I don’t (yet) see how.

Thu, 05/21/2020 - 21:46

Simon, any chance to purchase the springs alone?

Barkuti · 2020-05-23T23:47:11.000Z

Musaka Despa:

Barkuti

Dear Sir! I'm confused! I thought it was a resistor, which I noted in the picture.

…

And so it is. I never said otherwise.

Musaka Despa:

…

And why you noted a thermistor in your pictures? I do not want to lose thermal control. And I don't want to delete it.

…

Please stick to what I said. These pictures are not my pictures, and the reason I linked them is because they clearly show the relative size and location of the sense resistors. Period.

Note what I said above. I've only seen ∅17mm drivers, they use 1210 imperial size resistors; the ∅20mm driver looks to use the same size. The ∅22mm driver looks like it uses a bigger resistor, 2010 imperial I'd say.

I never said you need to remove thermal throttling. Me and others do, but if you feel better leaving thermal control then do so.

Musaka Despa:

…

Dear Friends! Apparently, I'm confused. Could you write step by step what exactly needs to be done to increase the current on these drivers, …

Everything is crystal clear. What has been said: swap the sense resistor stack. Decide what maximum current do you want, and then calculate the required sense resistor value.

Lightbringer · 2020-05-24T00:15:26.000Z

Musaka Despa:

Dear Friends! Apparently, I’m confused. Could you write step by step what exactly needs to be done to increase the current on these drivers, which parts to apply and give a link to Ali on them. Thank you very much!

Not to seem like Mr Glass Half Empty, but if you’re not at least reasonably sure what to do (and why), you probably don’t want to monkey with a light unless you’re willing to take the risk of ruining it.

oweban · 2020-05-24T00:53:54.000Z

Okay everyone, stop, no more attacks. It doesn’t get anything resolved.

Musaka, Barkuti referenced a thread where the thermal sensor was discussed, but in that thread were measurements for the other resistor, the one that controls current. On the 17 and 20mm drivers they’re 1210, and on the 22mm (which is the one I currently have and have tested on), it’s the 2010.

Hope that clears everything up, and let’s all move on without any more name calling.

Yokiamy · 2020-05-24T16:10:00.000Z

Now look what you did Barkuti, your warm welcome has made the new member disappear.

That’s totally NOT the BLF spirit!

Barkuti · 2020-05-24T16:56:55.000Z

Yokiamy, calm down; I did what it had to be done, report sb56637 what was happening. This was a good deal of hours ago, when Musaka Despa started blatantly trolling on me (again). I never insulted him, he was lying. And in case any of you is wondering why do I say “again”, is because Musaka Despa is the same guy who started misbehaving in this same thread two weeks ago under the nickname Bison Jack (banned). So Musaka Despa was banned, again.

Nothing blocks him from re-registering a new account and coming back here. If it happens, good luck and deal with him.

hodor · 2020-05-24T17:04:48.000Z

I suspected as much. Be kind everyone

Yokiamy · 2020-05-24T18:02:59.000Z

Thanks for the explanation Barkuti

Simon_Mao · 2020-05-25T08:04:14.000Z

Agro:

Barkuti:

A few minutes ago I finished modding my ∅17mm SST40 biscotti clone drivers, one of them will (hopefully) go in an old, modified Thrunite T20T and for this reason I removed the stock spring (there’s barely place for a copper top cell driver contact inside that tiny flashlight).

So I grabbed a couple BlueSwordM’s springs, 3rd and 2nd gen big springs, and proceeded to make a crude voltage drop over the spring test against the new springs Simon is using in the biscotti clone drivers. I used my precision power supply tuned at 5A, with alligator clamps attached to the ends of the springs as best as I could. Connecting at the base of the springs was easy, the top gave me some difficulties, and I placed my multimeter’s probes as best as I was able (near the base beside the clamp and as close to the top as I could make a decent contact):

Newer wide top spring from Simon: in a first run I was getting 60 - 65mV. Tried two more times, got values jumping up and down up to 70 and below 60mV. On average, I give it a rough score of 62 - 63mV of drop.

BlueSwordM’s 3rd gen big spring: could see some figure above 60mV, but all around 57 - 58mV give or take rough drop score.

BlueSwordM’s 2nd gen big spring: this was fast, could clearly see figures settling around 45 - 46mV rough drop score. Bear in mind the 2nd gen spring has one coil less than the 3rd gen, and it somewhat deforms once compressed.

Now, despite the limitations of the test and the possible percentage of error, all I can say is the stock springs coming with the newer drivers are awesome! Let’s wait to see what Simon has to say, but they must be made of C17530 or something with similar IACS conductivity to perform this good. It’s either this or I did some blunder with my procedure, although I don’t (yet) see how.

Thu, 05/21/2020 - 21:46

Simon, any chance to purchase the springs alone?

ok ,i add the link of spring here

Agro · 2020-05-25T08:37:08.000Z

Simon Mao:

Agro:

Barkuti:

A few minutes ago I finished modding my ∅17mm SST40 biscotti clone drivers, one of them will (hopefully) go in an old, modified Thrunite T20T and for this reason I removed the stock spring (there’s barely place for a copper top cell driver contact inside that tiny flashlight).

So I grabbed a couple BlueSwordM’s springs, 3rd and 2nd gen big springs, and proceeded to make a crude voltage drop over the spring test against the new springs Simon is using in the biscotti clone drivers. I used my precision power supply tuned at 5A, with alligator clamps attached to the ends of the springs as best as I could. Connecting at the base of the springs was easy, the top gave me some difficulties, and I placed my multimeter’s probes as best as I was able (near the base beside the clamp and as close to the top as I could make a decent contact):

Newer wide top spring from Simon: in a first run I was getting 60 - 65mV. Tried two more times, got values jumping up and down up to 70 and below 60mV. On average, I give it a rough score of 62 - 63mV of drop.

BlueSwordM’s 3rd gen big spring: could see some figure above 60mV, but all around 57 - 58mV give or take rough drop score.

BlueSwordM’s 2nd gen big spring: this was fast, could clearly see figures settling around 45 - 46mV rough drop score. Bear in mind the 2nd gen spring has one coil less than the 3rd gen, and it somewhat deforms once compressed.

Now, despite the limitations of the test and the possible percentage of error, all I can say is the stock springs coming with the newer drivers are awesome! Let’s wait to see what Simon has to say, but they must be made of C17530 or something with similar IACS conductivity to perform this good. It’s either this or I did some blunder with my procedure, although I don’t (yet) see how.

Thu, 05/21/2020 - 21:46

Simon, any chance to purchase the springs alone?

ok ,i add the link of spring here

Thanks. BTW, are these springs made from the same material?

ecotack · 2020-05-25T21:20:12.000Z

Simon, what is the diameter of the 12 groups xhp70.2 driver for one cell ?
I either can’t see for looking, or its not on the product page.

Simon_Mao · 2020-05-26T02:51:16.000Z

Agro:

Simon Mao:

Agro:

Barkuti:

A few minutes ago I finished modding my ∅17mm SST40 biscotti clone drivers, one of them will (hopefully) go in an old, modified Thrunite T20T and for this reason I removed the stock spring (there’s barely place for a copper top cell driver contact inside that tiny flashlight).

So I grabbed a couple BlueSwordM’s springs, 3rd and 2nd gen big springs, and proceeded to make a crude voltage drop over the spring test against the new springs Simon is using in the biscotti clone drivers. I used my precision power supply tuned at 5A, with alligator clamps attached to the ends of the springs as best as I could. Connecting at the base of the springs was easy, the top gave me some difficulties, and I placed my multimeter’s probes as best as I was able (near the base beside the clamp and as close to the top as I could make a decent contact):

Newer wide top spring from Simon: in a first run I was getting 60 - 65mV. Tried two more times, got values jumping up and down up to 70 and below 60mV. On average, I give it a rough score of 62 - 63mV of drop.

BlueSwordM’s 3rd gen big spring: could see some figure above 60mV, but all around 57 - 58mV give or take rough drop score.

BlueSwordM’s 2nd gen big spring: this was fast, could clearly see figures settling around 45 - 46mV rough drop score. Bear in mind the 2nd gen spring has one coil less than the 3rd gen, and it somewhat deforms once compressed.

Now, despite the limitations of the test and the possible percentage of error, all I can say is the stock springs coming with the newer drivers are awesome! Let’s wait to see what Simon has to say, but they must be made of C17530 or something with similar IACS conductivity to perform this good. It’s either this or I did some blunder with my procedure, although I don’t (yet) see how.

Thu, 05/21/2020 - 21:46

Simon, any chance to purchase the springs alone?

ok ,i add the link of spring here

Thanks. BTW, are these springs made from the same material?

Yes, they use the same material, and the quality of the coated spring will be better.

Simon_Mao · 2020-05-26T02:51:41.000Z

ecotack:

Simon, what is the diameter of the 12 groups xhp70.2 driver for one cell ?
I either can’t see for looking, or its not on the product page.

22mm