*BLF Ultimate Lantern Project*~updates:Lexel building driver prototype)

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DBSAR
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ToyKeeper wrote:
Looks good, but it looks like the middle section could probably be shortened. Lots of empty space in there.

its is possible to shorten it a bit, ( original design was to make sure there was enough space for the driver circuits, plis a stand-alonw USB & charging circuit original, but Lexel has designed a great driver with all the components on the main driver board, (Lexel is needed to comment on that) as long as there is space above for the wiring, on-off button, and USB ports.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

DBSAR
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Boaz wrote:

Are there multiple flats spots on the body ? Is it just for a place to splash a name ? I was hoping like the new Q8 they would just do a 100% knurling and be a bit more discrete  with make and model # .


 


I want one in beige ,camo, plaid ,pink and paisley


 

I thought about having knurling added to the mid-section, ( but either leave space there for the name & model in the mid section, or have the name & model logo on the side of the head.

if costs allow and Barry with is engineers can do it, i think other color options would be nice for this project. ( standard black anodizing, with white/silver , possibly olive green, & other colors.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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Tally-ho wrote:
The battery tube is going to be the old one of the Q8 instead of the one planed for the Sofirn Q8 v1.5 with a batteries carrier ?

!{width:53%}https://ae01.alicdn.com/kf/HTB1kcidirorBKNjSZFj763_SpXae.png!

Which ever is a lower cost option we will go with likely.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Tom Tom
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Just a thought, the tailcap of the Q8 is it’s weakest point IMO. A thin fragile shell that would not withstand any kind of abuse, drop, etc. and very finely threaded.

I have long been waiting for something much chunkier to be made, spreading out a little wider for better stability ||(and grip, when handholding, the Q8 is a slippery devil), also with provision for attaching a lanyard.

This is very important for a lantern that will be expected to tail-stand. The Q8 tail cap is completely unsuitable IMO, It is also flat on the bottom, so only stands on a completely flat surface.

Something like the tail cap of e.g. the Astrolux MF01, also providing for attachment of a lanyard if desired. I have one of these, and it is far superior to the Q8 design.

Edit: with three, not four, raised parts, for stability.

The Q8 tube was left to Thorfire to design, the team just focussed on the head, which is a decent design, (Edit: in version 2) but the tube, and particularly the tail cap, could have been done much better. Sofirn have corrected the tube in their new Q8 by removing the flats that never registered properly for those with OCD, but still haven’t addressed the very poor tailcap.

Some way to attach a string to the top and suspend it is also required for a lantern IMO.

Tom Tom
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DBSAR wrote:
Tally-ho wrote:
The battery tube is going to be the old one of the Q8 instead of the one planed for the Sofirn Q8 v1.5 with a batteries carrier ?

!{width:53%}https://ae01.alicdn.com/kf/HTB1kcidirorBKNjSZFj763_SpXae.png!

Which ever is a lower cost option we will go with likely.

I don’t think the Sofirn Q8 with battery carrier and optional extension tube is going ahead. No need for a complicated battery carrier on this thing.

No need for a FET in the driver either, keep it sensible and efficient.

mdeni
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Will the charging be USB C?

Because most of the new smartphones are adapting USB C, in 2019 I think there will be not much use for devices with no USB C. We will need to carry an adapter.

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DBSAR wrote:
ToyKeeper wrote:
Looks good, but it looks like the middle section could probably be shortened. Lots of empty space in there.

its is possible to shorten it a bit, ( original design was to make sure there was enough space for the driver circuits, plis a stand-alonw USB & charging circuit original, but Lexel has designed a great driver with all the components on the main driver board, (Lexel is needed to comment on that) as long as there is space above for the wiring, on-off button, and USB ports.


Apart from that about a cm can be sliced out, there is too much aluminium there, the driver cavity can be widened making it more lightweight.

I agree with Tom Tom that a bit wider base of the lantern with 4, no 5 looks nice Smile , short legs would allow the lantern to tailstand better on rougher terrain.

Chatika vas Paus
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I think that these fins (above the button) are unnecessary. And without flats on the battery tube it would look much better. As it is in Sofrin Q8.

Forever beginner.

 

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CrashOne wrote:
I would like to bu put on the list for 1 Smile

Can I be added to the list? Thanks! Smile

ToyKeeper
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If it is designed like the BLF Q8, with the batteries slotting directly into the body tube, the flats are an effective way to remove unnecessary material and reduce weight. It could even be mostly square, like an original Skyray King or Blackshadow Terminator. But if the batteries go into a round holder which can rotate in place, the body tube should probably be more round.

I don’t really have a preference, but it would make sense to match the outside to whatever is inside.

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The part with battery not take part it cooling so It should be as small and light weight as possible. Ribs are not needed at all
The part with LED should have radiator and good mass and surface. Even 5W , for current construction is too much.

The tail cap now also is too large.

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AEDe wrote:
The tail cap now also is too large.

I think that is to allow room for a tripod mount on the tail.

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ToyKeeper wrote:

I think that is to allow room for a tripod mount on the tail.

Thanks, I see. But maybe it is possible to find more space/mass efficient solution. For example to place this room in the hole between batteries (don’t know the dimensions )
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The threads for the bolt seem very shallow. The bolt will hold on 4-5 threads. In a fall, the aluminium is the softest material and it will dethread easily. It needs at least three times larger “nut” for the bolt. Or a hexagonal slot for a nut. This as is will break at the nut very easily.

Also the charging port should be USB C, as I mentioned.

Tom Tom
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ToyKeeper wrote:
If it is designed like the BLF Q8, with the batteries slotting directly into the body tube, the flats are an effective way to remove unnecessary material and reduce weight. It could even be mostly square, like an original Skyray King or Blackshadow Terminator. But if the batteries go into a round holder which can rotate in place, the body tube should probably be more round.

I don’t really have a preference, but it would make sense to match the outside to whatever is inside.

If mass was a concern, this would mostly be made out of e.g. polycarbonate.

Which would require much more tooling expense.

But it seems a heavy chunky Al lantern for base-camp and SHTF applications is the way it is going. So at least make it aesthetically pleasing, very solid. And efficient, practical, useful.

The powerbank, solar charging and USB charging is compelling stuff, but not really my cup of tea. I’d better disconnect from this thread, for fear of coming across as a bit negative.

PS: I do use lanterns often, as well as torches with diffusers, in the “great outdoors”, but still don’t feel a great desire to add this one to my arsenal.

Bye, and good luck.

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I’m interested for one depending on the final pricing.

Lights, Knives, Multi-tool, and Watches!

Zebralight, Olight, Fenix, Convoy, Thorfire, Lumintop, Thrunite, Astrolux, and more...

AEDe
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mdeni wrote:
. Or a hexagonal slot for a nut.

Totally agree with that.Nut and bolt should be made of stainless steel.

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mdeni wrote:
Will the charging be USB C?

Because most of the new smartphones are adapting USB C, in 2019 I think there will be not much use for devices with no USB C. We will need to carry an adapter.

I am not a big fan of “throw out everything and start new” without a clear answer on “what I am getting back” and “does it worth it”. Already own 50+ USB cables, many mobile phones, tablets, flashlights, ecigs, powerbanks, battery chargers e.t.c. which all use micro usb and I am not in a rush to throw them all out so I can change the shape of the cable to a “doesn’t matter how you plug it”. So, I prefer micro usb over usb C because usb C needs money to solve a problem that it created in the first place.

There will be a switch to usb C, either I like it or not, but, I am not in a rush until the time comes where all my electronics are dead and replaced with others using usb C.

Just a little rant, carry on Big Smile

Let a flooder be my wife and a thrower be my mistress

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The most used device is smartphone. It is define cables type.
Many people already use typeC. And the most new smartphone has typeC. The average life time of smartphone is about 2 years.
So average man will have TypeC smartphone in less than a year.

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AEDe wrote:
The most used device is smartphone. It is define cables type.
Many people already use typeC. And the most new smartphone has typeC. The average life time of smartphone is about 2 years.
So average man will have TypeC smartphone in less than a year.

And we wont have this light in less than a year. Big Smile
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…and 20 years later, after usb-d, usb-e…usb-k, we will finally switch to a magnetic usb plug which will solve the problem of worn and broken usb sockets and we will be all over it! Facepalm

If current magnetic micro-usb cables could handle the current draw of QC3.0, I would just had magnetic adapters to all my devices and only magnetic cables with me and on my chargers, but… I burned 10 magnetic cables testing charging like that. When I find high-Amp magnetic cables (charge+data), I won’t care, switch to anything you like, I’d just plug the correct adapter. Big Smile

And I am still ranting Facepalm I am sorry for the – mostly – off-topic, carry on Big Smile

Let a flooder be my wife and a thrower be my mistress

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I think the globe can be fabricated very easily from polycarbonate tubing such as this Tubing .
This would be much less costly than a molded globe.

Paul-

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Paul321 wrote:
I think the globe can be fabricated very easily from polycarbonate tubing such as this Tubing . This would be much less costly than a molded globe.

That is basically what they use for lightsaber blades. However, lightsabers also need a few layers of cellophane on the inner surface to diffuse the light. And sabers don’t have to care about CRI or tint. The polycarbonate tubes were chosen primarily for combat durability, not as much for optical properties.

So it might work or it might not. It would probably be very sturdy, at least. Those things can really take a beating.

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CrashOne wrote:
CrashOne wrote:
I would like to bu put on the list for 1 Smile

Can I be added to the list? Thanks! Smile


you are on the interest list as noted in this post
The OP does not always (almost never) have the interest list as I manage it online and provide it to DBSAR periodically to update the OP. You can find the up to date list(s) here:

interest list sorted by entry number

interest list sorted by user names

DBSAR, if you get time and read this, you can copy the links above into the OP for folks that are not seeing their names on the interest list in the OP. The links don’t change when the list changes, so it makes for a bit less work. My home PC died recently, or I would just send you an updated list right now in a format suitable for updating the OP. I will try to remember when I am at work this week, after my whirlwind of meetings end.

jinjin19 wrote:
I’m interested for one depending on the final pricing.

you are added at number 1013 to the interest list.

PocketSammich wrote: I don’t need this, but I want it. Please sign me up.

DBSAR
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sbslider wrote:

DBSAR, if you get time and read this, you can copy the links above into the OP for folks that are not seeing their names on the interest list in the OP. The links don’t change when the list changes, so it makes for a bit less work. My home PC died recently, or I would just send you an updated list right now in a format suitable for updating the OP. I will try to remember when I am at work this week, after my whirlwind of meetings end.
jinjin19 wrote:
I’m interested for one depending on the final pricing.
you are added at number 1013 to the interest list.

Added both links to the OP just above the post list Smile

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

sbslider
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sounds good, I just emailed you an updated interest list with jinjin19 as the last entry.

PocketSammich wrote: I don’t need this, but I want it. Please sign me up.

DBSAR
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sbslider wrote:
sounds good, I just emailed you an updated interest list with jinjin19 as the last entry.

got it. )

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

lexvegas
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Wow! Looking good! Seriously impressed by what the team has turned out.

Phlogiston
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Those factory drawings look good. No sign of a battery carrier, which I like, because that’s one less thing to lose. I’m happy to see the 18.9mm × 71mm 18650 dimensions as well, because that means we have the choice of protected or unprotected cells, i.e. whatever people have to hand.

I note the discussion on tripod and bolt threads; long threads and steel nut inserts would definitely be nice to help prevent thread stripping incidents, whether from drops or people overtightening. Even factory assembly workers can and do overtighten things.

I’m sure many of us have seen our share of Friday products with threads that were almost stripped but not quite, so they just barely cleared quality control, then failed prematurely in service. My university lecturers were keen on “design for manufacturability”, also known as “making sure the numpty with the big spanner can’t destroy the unit before it even gets out the door.”

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If it can already take batteries that are 71mm long and 18,9mm wide, would it be possible to make it a little wider so that everybody who needs maximum runtime could also use 20700 or even better 21700 batteries?

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