Personally I’d prefer them not to spend much time testing fin configurations for cooling. It’s just an added cost, I want a cheap well built host.
Just look at a heat sink that is designed to be used without a fan, they’ve been engineered to death . Kiriba-ru is a smart guy, have a look at what he made for Convoy C8’s.
Deep thin slots make it hard for air to move, once the air gets hot it needs to move out of the slot and be replaced by cool air. Wider slots are also faster to manufacture, there are less of them to make and a wider tool is stronger. Less chattering and more coolant flushing chips out leads to much faster feed rates. More parts per hour, less broken tools and less scrapped parts. It should be easy to talk the manufacturer into it as long as the end result looks nice enough to sell. Kiriba’s design will look good to knowledgeable people, probably needs to be tempered some to make it look good to the masses.
Their existing design isn’t bad compared to most lights and could be kept if need be. Just keep in mind deepening the existing slots won’t help much in cooling but will increase manufacturing time, break more tools and scrap more parts when the tool breaks. Adding your tapered section will help spread heat across the head of the light, might be almost as effective as the best finning. I’d prefer a stepped design. Its probably faster to machine and could be used to install a shelf for multi emitter optics. Either way its less material for the manufacturer to remove, less time equals cheaper to manufacture. They just need to spend a little more time making sure the reflector fits, shouldn’t be a hard sell.
Still faster than testing, the heat path
can be predicted from the pictures, as said: no rocket science. Only the last few percent improvement needs testing, but just skip that, it is not important.
@Spartan
You forgetting that most of the smaller Flashlight companies do not have their own CNCs…. they go with a design to a company that makes metall parts and order the parts. Same with drivers, reflectors. . . . So making a prototype, test it make changes, new prototype . . . . is not a fast thing. And not cheap because you are asking a company usually making 500-1000pcs min at a time to make you 1 or 2 prototypes than you make changes and ask again for 1 or 2 prototypes . . . Even if you go with 3 different versions and asked them to make them at once. You pay a lot of extra money.
Even Thorfire did not make the Host themself. If i remember right (Sofirn made the lights back then).
If they see a huge GB interest lists (like Q8, BLF-GT, FW3A. . . ) they spend the money. But i can understand if they do not want to spend the funds. I sure would like to see such tests!
If someone can implement a stepped design instead of the tapered section (my cousin did) i could send it to LS. I tryed to do it on my tablet but it looks crappy. And i do not have a laptop with me in hospital. I would also prefer a stepped design because it makes it easyer to mod the head with spacers (for tripple or quad optics).
But i need help to change the drawing. Or can someone name a good app for android so i can give it another try myself.
That looks good to me, much better than having to fill the whole cavity with a heavy spacer.
If someone wants to mod it with multi emitters they can work out the details themselves. I was thinking of using the old Ultrafire 21mm optics or trying out some of the Yajiamei, they range from 11 to 13 mm tall.
Led4power sells an spacer for an X6 that is designed to work with a triple and quad Ledil Cute optic. The Cute optic has a diameter of 35mm and is 15mm tall. The spacer is 31.4 x 9.25mm. Probably too big to fit in there but it would be nice if it could.
A Ledil Suri optic (single emitter) is 38mm wide and 24mm tall. It seems to do a decent job smoothing out an XHP70.2, any chance it will fit in there? Powering it with a good boost driver on a 21700 cell might be fun. Product card - LEDiL
Can you modify the cooling fins on the left side of your drawing to show any changes you might have in mind?
Exactly, even 70% effectiveness will be a big improvement over what’s there. In the end we’re going to overheat it on turbo anyway.
The manufacturer is more concerned about selling performance than product performance. It needs to be cheap to manufacture and look good in a picture and on a shelf.
We’re just hoping to make some simple changes that they will go along with.
It is a one time cost that has to be made. The entire product line could benefit from getting another, let’s say, 10% efficiency in handling heat.
Sofirn is one company that can easily do it. But do they?
So yes, they SHOULD be testing and improving, but then, short sighted companies see no profit in that. And in some companies, that carries into their quality control.
Sounds like they are sticking with an 18650 cell and keeping the shallow driver pocket.
I don’t know why they are bothering to update this light, they’re not really improving anything. Its just the old light with a driver change, and an odd size so no one will use it for a host.
I’m sure Convoy will like this news, the C8 and M1 are proven products that have this part of the market mostly covered. The new version of the S2+ with the 21700 body is almost ready and Sofirn can’t be too far behind. Its going to be tough for Lucky Sun to sell the same old same old with all the shiny new stuff around.
@Lexel
I thought they wanted to go with a standart size 17mm driver. They said they have max 19,5mm but why would they use it (or do you need the extra space on the driver board)? Makes later modding more difficult.
Here the last drawings. Added less material on the inside and removed a little bit on on the lower finns.
I have seen what you were refering to djozz. Now it should be better. @Spartan
Most people and LS fear that the head is becomming to heavy. So we reduced the mass a bit. But we still have improved the heatpath.
I only hope that Lexel is not going for a 19,5mm driver. This would make later modding more complicated. I hope they will end up with a 17mm driver.
I like my D80’s and with some simple tweaks they can do some serious throw for their size, as has been discussed already. Here is the 2 that I got from the GB , with one being totally stock and the other one I modded with FET driver / XPL-HI 1A emitter (on Noctigon) , spring bypasses and did just a little bit of sanding on the bottom of the reflector and centering ring to get the focus dialed in.
Original D80 Left / Modded right,
Original D80 175 yards………
Modded D80 175 yards……….
