【convoy】H4 and B35AM options are updated

[oweban]

No more nested quotes!!!

[Agro]

@Simon Mao

@Agro

@Simon Mao

@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.

That’s good, thank you. But do you have any plans to introduce a small coated spring?

bottom diameter : 9.5mm

top diameter: 6.8mm

thickness : 0.9mm

height : 13.5mm(before use),12.5mm(after use) (Phosphor bronze springs will become shorter after one use due to the material properties)

What size is more suitable for your needs？

Basically the smaller the better. I have some good larger springs already. Your small phosphor bronze is OK but if it was available coated - I would prefer that.

[will34]

My finger got tired from scrolling the above comment just to reach the end for the useful part…

[Lightbringer]

@Agro

@Simon Mao

@Agro

@Simon Mao

@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.

That’s good, thank you. But do you have any plans to introduce a small coated spring?

bottom diameter : 9.5mm

top diameter: 6.8mm

thickness : 0.9mm

height : 13.5mm(before use),12.5mm(after use) (Phosphor bronze springs will become shorter after one use due to the material properties)

What size is more suitable for your needs？

Basically the smaller the better. I have some good larger springs already. Your small phosphor bronze is OK but if it was available coated - I would prefer that.

Ooh, that sounds interesting. Coated with what? Tinned for better soldering? Au-plated for lower resistance?

[Agro]

The large springs are Au coated

[BurningPlayd0h]

What kind of formatting do you guys have set up on your browser? These nested quotes like… one swipe of the mouse wheel or my phone screen for me to scroll past.

[MascaratumB]

Please stop the quoting quoting quoting folks!
There were threads locked and blocked (this is, difficult to open) due to the trolling of quoting quoting quoting…
No need to play with it now

[Yokiamy]

Please stop unnecessary quoting!

It makes the thread unreadable!

[Simon_Mao]

@Lightbringer

Only after the first use, the spring will be slightly shortened, and the height will not change in future use.

[Lightbringer]

ktnx!

[ToyKeeper]

@Barkuti

Avoid or slim down those quotes, please.

@oweban

No more nested quotes!!!!

@MascaratumB

Please stop the quoting quoting quoting folks!

This isn’t a complete solution, but it is at least possible to eliminate the issue on a per-browser basis. Using a stylesheet override extension like Stylus, create a style and paste this in:

/* hide quotes deeper than 3 levels */
blockquote.quote-msg blockquote.quote-msg blockquote.quote-msg blockquote.quote-msg {
    display: none !important;
}

… and tell it to apply the style on a domain level to budgetlightforum.com. This removes deeply nested quotes.

To adjust the nesting threshold, add or remove repetitions where it says “blockquote.quote-msg” a few times. Like, if you want to limit it to 2 instead of 3, remove one of the repetitions.

[Barkuti]

Does someone already knows how the “battery check” function works in the SST-40 Biscotti-clone drivers?

With a cell hovering around 3.9V I am getting 5 blinks. :???:

[hasddie293]

About the quote, did you guy really have saw a very long quote before?! Quote is used to be simple phrase of important stuff…e.g ” There is finest line between madness and genius” -A. Einstein. THERE. DONE. SIMPLE.

SOLUTION: CLICK THE QUOTE AND EDIT THEM, TAKE ONLY IMPORTANT PHRASE UNDER NO MORE THAN 20. ELSE, dont use quote. Just use convention post/comment and save.

[Yokiamy]

@Simon Mao

Any progress in the 4x18A with SBT90.2 LED?

Looking forward for it

[Simon_Mao]

@Yokiamy
At present, there is only a driver with an output current of 18A, and i will take some time to develop a 25A driver.

[hodor]

@hodor

Strange addition to tail spring bypass I haven’t seen before.

Anyone know the purpose of the silver hook thing?

[BurningPlayd0h]

@hasddie293

About the quote, did you guy really have saw a very long quote before?! Quote is used to be simple phrase of important stuff…e.g ” There is finest line between madness and genius” -A. Einstein. THERE. DONE. SIMPLE.

SOLUTION: CLICK THE QUOTE AND EDIT THEM, TAKE ONLY IMPORTANT PHRASE UNDER NO MORE THAN 20. ELSE, dont use quote. Just use convention post/comment and save.

You want people to take the time to edit past quotes out of posts (difficult and complicated with the reply formatting) vs just scrolling a bit farther?

Can someone post of a screenshot of these excessively long quote trains? None I’ve seen are long at all except when it’s a wall of text or many images posted. The previous image is longer on my screen than any of these terrible quote trains in this thread.

[Lightbringer]

@BurningPlayd0h

Can someone post of a screenshot of these excessively long quote trains? None I’ve seen are long at all except when it’s a wall of text or many images posted.

Yeah, I just looooooooove the quoted repeats of 35 multimeg pix in a row, followed by ” “.

What terrible terrible people…

[JaredM]

@Simon Mao

@Yokiamy

Any progress in the 4x18A with SBT90.2 LED?

At present, there is only a driver with an output current of 18A, and i will take some time to develop a 25A driver.

I’m also hoping to see this soon! Honestly, 18A wouldn’t be bad. With the mass and size of the host, that’s probably about right TBH. I think the idea of a 4 cell light is to have sustainable output. YMMV

ON A SEPARATE ISSUE:

I purchased and installed 3 or 4 of the 17mm 12mode sst40 drivers now, and am experiencing the same issue with all of them. They are forgetting their mode group! Seems like every other time I pick up on the the lights with this driver, it’s reverted back to group 1. This is very frustrating to say the least. One of these is built into a Convoy M2, and I experienced the same contact issue as others have mentioned here. Got it working with added solder on the driver rim, but this is not how I wish it worked.

Regarding the M2 design… It has a flaw in design that doesn’t allow the reflector to sit deeper than 1mm above the MCPCB. This becomes a problem with the OSRAM emitters as they need about 0.4mm gap for proper focus. The simplest solution for this might be making 3030 DTP boards thicker. Additionally, please consider making centering gaskets from BLACK plastic in the future. Also, avoid the beveled angle near the emitter, as this causes artifacts in the beam from this surface being directly illuminated. If the gasket was black and had a square (or negative angle) transition from the center hole outwards, no light would hit this surface (or penetrate up to it) and artifacts will be avoided.

[Yokiamy]

I think 18A is ok, considering the heat dissipation and output.
My XT45 does 15,4 A on a full cell with about 5200 Lm.

Otherwise the cells will drain even faster