[DisasterRadio] hello
Mitra Ardron
mitra at mitra.biz
Fri Sep 24 00:06:43 PDT 2021
It seems to be way too early to do large volume production, but there
would be an intermediate solution if there was a 3D print shop that
could do them on demand, though the enclosure Sam suggested might be
better for smaller volumes.
- Mitra
On 24/9/21 3:18 pm, Code Bus wrote:
> It is possible now to bring the tooling cost down if the job shop is
> set up to use 3D printed low-run tooling. One can print a mold from
> high temp resin and get between 50 and 150 parts out of the machine
> before the mold becomes unworkable.
>
> Not saying that's the path which would work well for Mitra, but it is
> something to consider asking the factories that you have a
> relationship with. Making an enclosure could be feasible even in
> low-run production, if there were enough interest - and a non-WIP PCB :]
>
> - code
>
>
> Sep 24, 2021, 03:10 by taylorhayis at icloud.com:
>
> For what it’s worth Mitra, in my day job I develop products -
> often from plastic. I design injection moulded parts, have a full
> CNC machine shop at home including 3d printing, and relationships
> with factories in China and Australia. An enclosure like this is
> about a $10k tool, and no more than $0.40 per set (front and back
> clamshell) with an MOQ of 2000pcs or so.
>
> If there was a final footprint / PCBA, making an enclosure
> wouldn’t be a particularly expensive or complex endeavour. That
> assumes someone is going to mass produce these however.
>
> If you need something 3D printed or machined moving forward
> however, shoot me a message
>
>> On 24 Sep 2021, at 11:20 am, Mitra Ardron <mitra at mitra.biz> wrote:
>>
>> Code
>>
>> Yes, I meant the one on the video.
>>
>> 3D printing is a totally fine way of doing an enclosure in
>> low volumes, but is a massive difference in both reality and
>> "cost" between buying something on Alibaba or just via paypal
>> from someone who has built them before, and something only
>> available as a CAD/3D printer file. I've gone through the
>> process of finding a 3D printing shop, and getting something
>> made, with a less than 50% success rate, and a one-off is
>> always more expensive as even a good shop has to allow for
>> the likely cost of getting it wrong the first time.
>>
>> One of the advantages disaster.radio potentially has over
>> some of the other solutions its the potential for geek-free
>> setup and install. I can figure it out, but most of the
>> villages around here - who could use a setup like disaster
>> radio - don't have a resident geek, and trying to find a 3D
>> printer to print a one-off certainly puts it in the
>> needs-a-geek bucket.
>>
>> The enclosure Sam suggests sounds a better candidate, though
>> it needs the panel mounted separately.
>>
>> Sam
>>
>> I'll try that enclosure you suggest - its a good price. But
>> I'm wondering, have you tried using one of them with the
>> other parts in that part list? How did you handle mounting to
>> and getting the aerial out, Are those connectors the right
>> size for that, without looking in detail at the components
>> I'm guessing it would want the small connectors for the solar
>> panel cable but its unclear if the 4-8 or 9-12 connector
>> would be best for the antenna proposed - I think the smaller
>> (the antenna says 8mm)
>>
>>
>> On 24/9/21 7:10 am, Code Bus wrote:
>>
>>> What enclosure are you referring to?
>>> If you mean the one featured in the video, you're free to make
>>> them yourself. The design exists as CAD and in 3d printable
>>> formats in the github repository. It is not less "real" simply
>>> because it hasn't been mass produced.
>>>
>>> Otherwise, like we've suggested, you can follow the Aliexpress
>>> parts list and make a working device, or use any enclosure
>>> designed to prevent water ingress.
>>>
>>> Sep 23, 2021, 20:46 by mitra at mitra.biz:
>>>
>>> Thanks Sam
>>>
>>> I was looking at the enclosure shown on the image on
>>> https://disaster.radio/ and thought that might have been
>>> real :-(
>>>
>>> - Mitra
>>>
>>> On 23/9/21 10:30 pm, sam at bristolwireless.net wrote:
>>>
>>> Can you clarify what the current state is - i.e. if
>>> I got the boards, built a pair of units, and flashed
>>> it - then would the chat and map apps talk over it.
>>>
>>>
>>> Yes that should be possible. You can buy them
>>> pre-flashed if you want to miss that step:
>>> https://www.aliexpress.com/item/4000396836096.html
>>>
>>> If using the webapp you only get a chat.
>>>
>>> If you use the Android app then you get a chat and a map
>>> AFAIK.
>>>
>>> By the way ... I notice there is a bad link to the
>>> enclosure on https://disaster.radio/build/
>>>
>>>
>>> Thx started fixing that link here:
>>> https://github.com/sudomesh/disaster-radio-website/pull/12
>>> awaiting someone to approve.
>>>
>>> This was the enclosure used:
>>> https://www.aliexpress.com/item/4000452268197.html
>>>
>>> It's fairly obvious how to put it together, but there
>>> are some instructions here too:
>>> https://hackaday.io/project/170069-disaster-radio-lora-mesh
>>>
>>> Thanks
>>>
>>> Sam
>>>
>>>
>>>
>>> - Mitra
>>>
>>>
>>> On 23/9/21 10:49 am, Code Bus wrote:
>>>
>>> The project lacks a maintainer with enough time
>>> to really give it the care it needs.
>>> I've been spending my free time trying to modify
>>> the firmware for the v3 dual-module prototype,
>>> it is slow-going.
>>>
>>> Other LoRa boards seem to work pretty well with
>>> the firmware in its current state
>>>
>>>
>>> Sep 22, 2021, 20:37 by mitra at mitra.biz:
>>>
>>> I tried to find out what was happening with
>>> Disaster Radio, by
>>> asking here - got zero responses :-( its
>>> really hard to figure out
>>> if there is anything going on that is useful
>>> to connect with :-(
>>>
>>> On 23/9/21 9:48 am, Greg Troxel wrote:
>>>
>>> eM Grzegorz<emgrzegorz at interia.pl>
>>> <mailto:emgrzegorz at interia.pl>
>>> <mailto:emgrzegorz at interia.pl>
>>> <mailto:emgrzegorz at interia.pl> writes:
>>>
>>> Hi,active list?Grzegorz
>>>
>>> Sort of. When people ask, someone
>>> answers. But not much seems to be
>>> happening. I do have the impression that
>>> those on the list wish there'd
>>> be more activity, and that most of them
>>> sort of hope to contribute. I
>>> of course do not speak for the coalition.
>>>
>>> Perhaps you can tell us why you're
>>> interested and what you'd like to see
>>> as highest priority.
>>>
>>>
>>>
>>> _______________________________________________
>>> DisasterRadio mailing list
>>> DisasterRadio at lists.sudoroom.org
>>> https://sudoroom.org/lists/listinfo/disasterradio
>>>
>>> -- Mitra Ardron -mitra at mitra.biz
>>> www.mitra.biz <http://www.mitra.biz/>
>>> <http://www.mitra.biz> <http://www.mitra.biz/>
>>> +61-491-082-515 mobile; +1-510-423-1767 whatsapp
>>>
>>>
>>> _______________________________________________
>>> DisasterRadio mailing list
>>> DisasterRadio at lists.sudoroom.org
>>> https://sudoroom.org/lists/listinfo/disasterradio
>>>
>>>
>>> --
>>> Mitra Ardron -mitra at mitra.biz www.mitra.biz
>>> <http://www.mitra.biz/>
>>> +61-491-082-515 mobile; +1-510-423-1767 whatsapp
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Mitra Ardron - mitra at mitra.biz www.mitra.biz
>>> <http://www.mitra.biz/>
>>> +61-491-082-515 mobile; +1-510-423-1767 whatsapp
>>>
>>>
>> --
>> Mitra Ardron -mitra at mitra.biz www.mitra.biz <http://www.mitra.biz/>
>> +61-491-082-515 mobile; +1-510-423-1767 whatsapp
>> _______________________________________________
>> DisasterRadio mailing list
>> DisasterRadio at lists.sudoroom.org
>> https://sudoroom.org/lists/listinfo/disasterradio
>
>
--
Mitra Ardron -mitra at mitra.biz www.mitra.biz
+61-491-082-515 mobile; +1-510-423-1767 whatsapp
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