[sudo-discuss] giant laser for the robot

[Adam Munich]

Dark cherry red = 808nm
Invisible, laser has glass rod = 1064nm
Invisible, laser is just diodes = 975nm

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On Thu, May 19, 2016 at 1:17 PM, Jake <jake at spaz.org> wrote:
> 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: https://pgp.mit.edu/pks/lookup?search=adam+munich
>>
>>
>> On Thu, May 19, 2016 at 12:55 PM, Jake <jake at 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 at 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 at 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 at lists.sudoroom.org
>>>>>> https://sudoroom.org/lists/listinfo/sudo-discuss
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
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>>>>>
>>>>
>>>
>>
>