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

keep the critique comments coming . . . :+1:

That sounds good Den, if the cup is from thick polycarbonate it will be immensely strong, it just does not look very thick in the design drawing. The white sleeve sounds like a good solution for getting the light out in the best possible way, you have all the experience about how the beam behaves :slight_smile:

Please add one more to the list for me, so total of 2 lanterns at this time.
Thank you.

There is been a lot of trial & error testing over the last couple years with different designs no doubt. But the ideas from all of you helped greatly! if anything else is seen or thought of, please post more. :+1:

Well, I’ve got to say, I’m actually glad that I heard about this project pretty late into its development, because I’m so excited about it that I’m already starting to get impatient! What amazing work you and the rest of the team have been doing DBSAR - thank you!

I had two small questions though:
-Will there be lanyard holes on the top cap and the tail cap? I couldn’t see any on the CAD, just the metal clip/hanger, but it’d be nice if there was some easy way of attaching paracord as an alternative method to hang the lantern (also ideally being able to do so right-side-up and inverted).
-I’m definitely someone who would have loved to have the powerbank feature, though I totally understand why it’s been dropped from the spec. Hypothetically, were a v2 lantern to be produced that had the powerbank capability added in, would it be possible just to upgrade the v1 to v2 spec by swapping over the driver (and attached daughter boards), or would it be more involved than this?

Once again, thanks for all of your continued efforts - I am seriously looking forward to seeing the outcome of this one!

This looks interesting. Please add me to the list.

Looks good.
In my eyes acrylic is a bad idea though. It tends to crack even under slight pressure.

We do hope to do a slight mod to the head to allow the bail handle to be replaced by paracord lanyard by the user. ( possibly with a through angled hole there the bail handle is to the top.

As for the USB power bang option, its unsure if it can be done as a retro-fit option later, it will depend on how the PCB board is produced and the plug port. (its its a USB-C type then its possible to use the same port)

Were hoping to see if it possible to have it made from a more durable material like polycarbonate (similar to lexan used in safety glasses)

Doesn’t that depend on the acrylic and design? I have a 125 gallon fish tank that’s been up and running for 30 years and it’s certainly under lots of pressure.

Acrylic is softer and more pliable than glass. It should be less prone to cracking than glass. Polycarbonate is ideal, but dunno how that would affect pricing.

If the side wall thickness of the globe/lens can be at least 2.5 to 3 mm thick, acrylic would be strong enough. (for example i used an acrylic storage cup that has a wall thickness of 2.5 millimeters, (roughly 1/8” thick) on the original V1 Lantern build, and that lantern has been used & abused, dropped, knocked over, & dragged on wilderness trips for a couple years and it has not cracked yet. (Just has a couple scratches & nicks from wear & tear. Though it would be preferable if polycarbonate can be used as that material is more scratch resistant & stronger, but if we have to go with acrylic for cost reasons and its thick enough then it will be ok.

Has someone a link to the final lantern logo?

The one that was originally finalized below:

Thank you! :+1:
I think its missing in post one :slight_smile:

Thanks for reminding me. :smiley: will add it.

OK, I’ve been thinking about the multi-day power outages we frequently have, better put me down for a second one.

My first one is: 1232 Ilumenati

Thanks,

Can I be added to the list too please?

@DBSAR Do you know if USB-C will definitely be used?

I’ll take a second one as well (Currently #1175). This build continues to exceed my expectations.