Dark cherry red = 808nm
Invisible, laser has glass rod = 1064nm
Invisible, laser is just diodes = 975nm
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Weblog:
i can't tell by looking at the beam.
how do you find out such a thing? we need some sort of spectrometer
since
it's bright enough to be detected through almost any filter.
On Thu, 19 May 2016, Adam Munich wrote:
> 1064nm, 808nm or 975nm?
>
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>
> Weblog:
http://adammunich.com
> Cell: +1-650-452-0554, M-F 10a - 8p PST
>
> PGP Public Key:
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>
>
> On Thu, May 19, 2016 at 12:55 PM, Jake <jake(a)spaz.org> wrote:
>>
>>
>> i was planning to just make an opaque, hinged privacy temporary-wall
>> for
>> when the robot is doing something dirty like that. It will help with
>> ventilation too, which is a bigger problem than arc flash with the
>> plasma
>> cutter.
>>
>> but a plasma cutter is such an awesome tool, i think it's totally worth
>> the
>> annoyance of having to make it safe for puny humans.
>>
>> -jake
>>
>>
>> On Thu, 19 May 2016, Adam Munich wrote:
>>
>>> You wont find an NIR blocking plastic curtain, unless it's black
>>> vinyl.
>>>
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>>>
>>> Weblog:
http://adammunich.com
>>> Cell: +1-650-452-0554, M-F 10a - 8p PST
>>>
>>> PGP Public Key:
https://pgp.mit.edu/pks/lookup?search=adam+munich
>>>
>>>
>>> On Wed, May 18, 2016 at 11:41 PM, Patrik D'haeseleer
>>> <patrikd(a)gmail.com>
>>> wrote:
>>>>
>>>>
>>>>
>>>> Cool! Do you have a model number on there somewhere?
>>>>
>>>> I assume this will be an IR laser if it's a diode array. So if we
get
>>>> a
>>>> safety curtain, we'll need one that can block both UV from the
plasma
>>>> cutter, and IR from the laser. Ditto for safety goggles. I assume
>>>> that's
>>>> feasible, although likely a little harder than protecting against
>>>> just
>>>> one
>>>> of those.
>>>>
>>>> Patrik
>>>>
>>>> On Wed, May 11, 2016 at 1:58 PM, Jake <jake(a)spaz.org> wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> I forgot to include this link:
>>>>>
>>>>>
http://www.idacontrol.com/articles.php?nid=10
>>>>>
>>>>> and a picture of the laser:
>>>>>
>>>>>
http://i.imgur.com/eXwf7Lo.jpg
>>>>>
>>>>> I looked it up and to put out 75 watts of laser power, we should
>>>>> probably
>>>>> feed in about 187 watts, or 2.5 times as much DC power in. That
>>>>> means
>>>>> we
>>>>> need 112 watts of cooling with the liquid path.
>>>>>
>>>>> we can put sonar sensors on the front of the laser so we can
>>>>> pre-focus
>>>>> it
>>>>> by distance while preparing works to be cut.
>>>>>
>>>>> -jake
>>>>>
>>>>>
>>>>> On Wed, 11 May 2016, Jake wrote:
>>>>>
>>>>>> we got a giant laser for the robot. This will allow it to cut
>>>>>> things
>>>>>> precisely for us, even if they're really large.
>>>>>>
>>>>>> of course to do this we'll have a safety interlock to prevent
use
>>>>>> by
>>>>>> untrained people, and we'll have a safety curtain or folding
wall
>>>>>> to
>>>>>> deploy
>>>>>> around the robot while the laser is enabled, so nobody can
>>>>>> accidentally
>>>>>> see
>>>>>> the light coming from it.
>>>>>>
>>>>>> I don't know the wavelength of the laser, but it's a
giant laser
>>>>>> diode
>>>>>> array with a lens on the end, and it has a water cooling jacket,
>>>>>> and
>>>>>> i
>>>>>> think
>>>>>> i was told it's a 75 watt laser. we do have a way to power
it.
>>>>>>
>>>>>> if anyone wants to get involved with playing with this, please
let
>>>>>> me
>>>>>> know. I think we could get it to the point where it could cut
>>>>>> through
>>>>>> some
>>>>>> serious stuff, and the extremely large work area of the robot is
a
>>>>>> big
>>>>>> deal.
>>>>>>
>>>>>> -jake
>>>>>>
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>>>>> sudo-discuss(a)lists.sudoroom.org
>>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>
>>
>