*BLF LT1 Lantern Project) (updated Nov,17,2020)

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 )

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.

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.

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

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

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 :smiley:

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. :smiley:

…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! :person_facepalming:

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. :smiley:

And I am still ranting :person_facepalming: I am sorry for the - mostly - off-topic, carry on :smiley:

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.

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.

you are added at number 1013 to the interest list.

Added both links to the OP just above the post list :slight_smile:

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

got it. )

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

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.”

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?

Yeah battery carrier sucks! :open_mouth:

Hi, great project, can I please be put on the interest list for 3 to 5 depending on the price.
Thanks