[PART 1] Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

I kind of missed all of that, but i see it’ll be 100mm deep and 120mm wide, which are about the same proportions as a default C8 reflector, right?

Common guy, we have 8*18650 here, add a peltiler to it
Jk, i dont want a short time running reseach torch
This render above i dont like it, it looks weak, if i drop it, probably it will dent, and damage the reflector

The button is still too big, it’s not finished yet.
Just wanted to share what i have thus far.
It’s better to let some pictures speak than to let me speak… :confounded:

It’s not done yet.
Head needs some features.
For the rest there is no reason to assume this will be weaker than the other one.
There is some space between the reflector and the head, of course.
I see what you mean though.

I MUCH prefer the Q8 style grip (kerling?) and I also much prefer the more aggressive design of the ordinal CAD personally but I could live with this smoother version if that is what people wanted.

It just looks wimpy in comparison. but thats just my opinion.

I have no idea what dimensions it actually will end up being, they haven’t sourced a reflector yet.
Also I’m pretty sure they will be buying a bulk order from some place that already premakes reflectors, not ordering a custom electroformed reflector from optiforms/phoenix because that will likely cost as much as the flashlight itself.

But those equations are a great way of figuring out the shape based on just height and width, which is all that some places tell you in the specs of a reflector.
Also good for designing a decent reflector for your flashlight if you can afford to get a custom one made :slight_smile: It does look pretty similar to a C8 in proportion though, maybe a bit shallower.

Still working on it.

I do take into account what you all say though.
But maybe i should have waited until it’s kind of finished.
It’s ‘knurling’ apparently. (i always thought it was knurdling).

No, it doesn’t look wimpy, but the head as is now looks a bit easy to dent.
It will be a challenge to get some features on there with my means, but it will both add some strength and prevent rolling.

It looks western in design. European / American.
Purposeful, cool and not too noisy.
…at least, that’s the idea. :slight_smile:

Shallower to keep the base wide, i.e. more distance between LED and refl. surface.
Indeed, the depth doesn’t add to much, it is why most reflectors are proportioned the same.
(but that’s probably all said already).

I like the banana idea ! :smiley:

Whatever you do, please add a CD/DVD, C8 or Q8 or something so sizes are a bit clearer :wink:

In regards to the comparisons with the L6

quote from the Convoy L6… XHP70 Beast! thread.

very very very hot, and it has fins :stuck_out_tongue:

Yes I know that was indoors but I have to think about using it with ambient temps in the 30c range so personally I would like as much finning as practical.
note:- that is practical not possible :wink:

Cheers David

XHP-35 can’t take much over 3A, if it even takes that. Small spikes will blow it up in that range. Most of us who’ve pushed them have learned to cringe when we hit Turbo at 3A or so. You’ll never see 5A in an XHP-35. But they do tend to run at a Vf around 13.7V when in the 2.8-3A range.

Cooling fins beyond what are now shown are a must. If run time with 8 cells is even considered, cooling fins to accommodate it must also be considered. Think of it like a 1/4 mile dragster. You spend a lot on the engine, are you gonna put street tires on the back to save weight or are you going to use top end racing slicks to hook it up? If this big light can’t run cool, there’s no point in the 8 cells.

Simon might be ok with an L6 look on a large scale, I do not know. But I would assume Thrunite will take great offense if this GT has a TN42 appearance.

Oh it gets hot for sure, but it doesn’t “overheat” in that any damage is done.

Like I said, I would like to see more fins myself but others would not. So we will need to see what the best compromise is.

I’m trying to put fins also on the part between head and tube, (which can be made of one piece) but it’s a ghastly job with my means…
I call it quits for today…

Well, they all have a knurled tube, a head and some fins around where the LED is located.
I don’t think a conical shaped head is patented either.
But none the less, okay, let’s not make it a lookalike. :slight_smile:

wao, I like it :+1:

So heat is the topic of the day?
Why would this be used in any situation where it’ll be static, on turbo, for the entire duration of the cells? Moving it around a little even while walking will cool it off significantly.
And if it needs to be used while static - turn it down to a lower mode……

I like the clean design Jerommel presented. I REALLY like it.
It looks……vaguely familiar. :wink:
Clean, uncluttered, purposeful, nice.
Not finished but a solid basic proposal.

A bit more cooling fins would not hurt but for my taste the rest of the head can stay smooth.
Having said that, something to prevent roll would probably not be a bad idea either, but I personally wouldn’t need it.
A sling I would like very much and the head design proposed already has the attachment.

So, we are now in the “heat management and final design” stage?
It’s getting better and better, so Mr. Miller (who apparently lives in France but can write surprisingly good dutch….) pls put me up for two lights instead of just one.

I know just the guy to give one of these beauties as a birthday present. :sunglasses:

Grtz
Nico

I’m in!!!

Please, please unclude a C8 in the next renders. Or even better in this renders so far. So we can see how big it is.

I did not like that last render from jerommel at all… IMHO :slight_smile:

The last flashlight I intend to buy is a Convoy m1 from Charles Wiggins, and maybe I have a “crush” on fins, but in my head it has that “powerful” outside look! But I belive even that flashlight gets hot some times…
And if we have in mind what Simon found out from his test with the L6 = very very very hot……hello we DO need fins.
You all know that light in any form builds heat, even hid.
So Dale has a good point, you don’t put Street tires on your dragster car….
And the jerommel design looks to be easy to dent, as mention above.

I hope we stick to 5ar’s design in a way…and that we build it better than it has to be, with that chosen led configuration.

:wink: