[Cyborg] Cyborg Digest, Vol 15, Issue 6

Eric Boyd mrericboyd at yahoo.com
Sat Jun 5 11:05:28 PDT 2010


Dave,

Sadly I've already placed the order, you're too late!  Maybe you can 
talk some of the other people into selling you some of theirs?  They are 
supposed to be "simply hook it up to 3-5V" simple.

I think your idea of diffusing/decohering the lasers is a good one.  We 
need some kind of rig capable of testing the results of various things 
we might use though.

Doing some research on safety, I really want to obtain some goggles. 
Our lasers are 650nm.

http://www.kenteklaserstore.com/Category.aspx?CategoryID=275

But these are all $200 or so!  The ones we would need are in the middle 
of the page, search for e.g. "Dye 8803".

We do not need much "OD" protection.  OD is optical density, OD1 permits 
10% of light through, OD2 1%, OD3 0.1%, etc.  Even if our lasers are 
50mW, OD1 would still be enough for us, though OD2 would be safer. 
Anything OD4 & above is likely to make it impossible for you to see our 
lasers, which would make it hard to work with them.

I'm sure there must be cheaper options, anyone have any sources?

Eric






On 6/5/10 1:00 AM, Dave Asprey wrote:
> Eric,
>
> I'd suspect that the govt safety standards use 5mw as a rough guide but that repeated hits of a 5mw laser aren't a great idea for your long term eye health. You won't feel the immediate damage - the pinholes that lasers put in your corneas automatically get filled in by your brain's vision processing system, making them invisible to you. You need detailed vision tests to become aware of the pinholes.
>
> Perhaps you can make these diodes non-coherent (perhaps with something as simple as some saran wrap - not sure?) but coherent enough to still be directional. I have a 5mw ruby and FIR laser used for rapid healing of injuries; you can look at it because the laser is not coherent, but the light is still is very "laserish" looking.
>
> Now I want a suit with a dozen of these 5mw lasers, tied to a CCD sensor and an aiming device, so that when I walk past a camera (or drive past a traffic camera), my laser outfit will overload the ccd sensor, making me invisible (or at least blurry). :)
>
> Thanks for this awesome list!
>
> If you determine that the lasers work with application of power (vs needing a more complex circuit to drive them), I'm up for $50 worth.
>
> -Dave
>
>
> -----Original Message-----
> From: cyborg-bounces at lists.noisebridge.net [mailto:cyborg-bounces at lists.noisebridge.net] On Behalf Of cyborg-request at lists.noisebridge.net
> Sent: Friday, June 04, 2010 1:02 AM
> To: cyborg at lists.noisebridge.net
> Subject: Cyborg Digest, Vol 15, Issue 6
>
> Send Cyborg mailing list submissions to
>          cyborg at lists.noisebridge.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
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> or, via email, send a message with subject or body 'help' to
>          cyborg-request at lists.noisebridge.net
>
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>
> When replying, please edit your Subject line so it is more specific than "Re: Contents of Cyborg digest..."
>
>
> Today's Topics:
>
>     1. half-Querty keyboard (Eric Boyd)
>     2. Re: 200 laser diodes (Hephaestus)
>     3. Re: [Bulk] Re:  200 laser diodes (Eric Boyd)
>     4. Re: 200 laser diodes (Eric Boyd)
>     5. wearable fog machines (Eric Boyd)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 03 Jun 2010 12:31:28 -0700
> From: Eric Boyd<mrericboyd at yahoo.com>
> Subject: [Cyborg] half-Querty keyboard
> To: "cyborg at lists.noisebridge.net"<cyborg at lists.noisebridge.net>
> Message-ID:<4C080310.2090707 at yahoo.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I find this pretty incredible.
>
> http://blog.makezine.com/archive/2010/06/the_sound_of_one_hand_programming.html
>
> http://www.half-qwerty.com/
>
> For one-handed touch typing.  They map the other half of the keyboard via mirror on the half you have a hand for.  You can access the second half by holding down the space bar while you type (or hack your own button as the Make guy did).  Apparently your brain figures it out really quickly because you already know how to touch type... awesome.
>
> Eric
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 3 Jun 2010 14:35:00 -0700
> From: Hephaestus<hephaestus at antipunk.net>
> Subject: Re: [Cyborg] 200 laser diodes
> To: Jacob Rosenthal<jjrosent at heatsynclabs.org>
> Cc: cyborg at lists.noisebridge.net
> Message-ID:
>          <AANLkTin3Swy-i9O1Jo6XRIvtR6TI4w0ESjSoY68bJDrt at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> If it's not too late (wow, this all happened so fast!), please put me down for about $50 worth.
>
> --
> Hephaestus
>
> On Wed, Jun 2, 2010 at 11:36 PM, Jacob Rosenthal<jjrosent at heatsynclabs.org>  wrote:
>> Greetings all,
>> Jacob from HeatSync Labs lurking here. ?If you need any more for scale
>> I'll go in on 50 bucks if Eric or someone would be willing to ship
>> them out to us in AZ.
>> Thanks!
>> Jacob
>>
>> On Wed, Jun 2, 2010 at 11:13 PM, Eric Boyd<mrericboyd at yahoo.com>  wrote:
>>>
>>> Well that was fast, here are the Q&A, both good news!:
>>>
>>> <<
>>> Tim Lee: Hi,Eric,
>>> Glad to receive your email.
>>> 1)Yes,the goods have drive already,you only put into DC3-5V,red power
>>> lead is "+",and black lead is "-".you don't need limit its current.
>>> 2)100units have 5% discount.means $2.54 per unit.
>>>
>>> Best regards
>>> Tim Lee
>>> Shenzhen Fuzhe Technology Co.,Ltd.
>>> FU-Lasers for you!
>>> Tel: +86-755-84528255
>>> Fax: +86-755-84528390
>>> Email:fulaser at gmail.com
>>> MSN:mandy-lees at hotmail.com
>>>
>>>
>>> ?>>>  mrericboyd Wed Jun 02 22:26:24 PDT 2010>>>  I'm looking at your
>>> "Civil Class 3A red 650nm 5mw dot diode laser module", I have two
>>> questions:
>>>
>>> 1) Does it have the drive electronics already included? i.e. can we
>>> just hook up a voltage source to the two leads and expect it to work?
>>> Do we have to limit the current or will it do that?
>>>
>>> 2) I'm looking for 100+ units, do you offer a volume discount price?
>>>
>>> Thanks,
>>> Eric
>>> ?>>
>>>
>>>
>>>
>>> On 6/2/10 10:26 PM, Eric Boyd wrote:
>>>> I've sent a question to the seller about the included electronics
>>>> and volume discount price. ?Here's hoping they have someone who
>>>> reads&  writes english :-)
>>>>
>>>> Eric
>>>>
>>>>
>>>>
>>>> On 6/2/10 1:47 PM, Rachel McConnell wrote:
>>>>> Oh man laser outfit... I sure want some. ?That link gives pricing
>>>>> for 1-10, maybe if we end up wanting a bunch more they might
>>>>> provide a further discount?
>>>>>
>>>>> I wonder if one could have a built-in smoke machine emitting
>>>>> particles along with the laser beam for best viewing. ?I saw a
>>>>> smoke machine on an outfit over the weekend, I will see if I can
>>>>> contact the maker of that and get more details.
>>>>>
>>>>> Rachel
>>>>>
>>>>> Eric Boyd wrote:
>>>>>> I sent a contact thing to the dude, asking if he's got any design
>>>>>> information up anywhere, and about eye-safety of the device.
>>>>>> ?Because I think that's the key thing here: can a beam which is
>>>>>> visible in e.g. a club (dim lights) also be eye-safe?
>>>>>>
>>>>>> According to wikipedia
>>>>>> (http://en.wikipedia.org/wiki/Laser_safety), to be legal (=eye
>>>>>> safe), the laser must be<5mW, that makes it fall into class IIIa
>>>>>> (now class 3R). ?I found some fairly cheap IIIa laser
>>>>>> diodes:
>>>>>>
>>>>>>
>>>>>> http://www.aliexpress.com/product-gs/263635799-Civil-Class-3A-red
>>>>>> -650nm-5mw-dot-diode-laser-module-wholesalers.html
>>>>>>
>>>>>> It's not clear to me if you need an external circuit other than a
>>>>>> current-controlled voltage source to drive these. ?I don't think
>>>>>> so, I think that's what they mean by "module" as opposed to just
>>>>>> buying the diode. ?If you do just need a current controlled
>>>>>> voltage source, we should be able to drive these directly from
>>>>>> the North Paw circuit, all we need is some resistors in series with the "motor" outputs.
>>>>>>
>>>>>> But I agree that while building the device, we'd need to have
>>>>>> some goggles. ?It'd give you a headache for sure if you caught
>>>>>> one in the eye more than a few dozen times.
>>>>>>
>>>>>> Anyone else interested in bulk ordering of these? ?With shipping
>>>>>> they are going to be about $4 each, so for<$50 you can have a
>>>>>> pretty decent number of them.
>>>>>>
>>>>>> Eric
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 6/2/10 11:52 AM, kristinneidlinger wrote:
>>>>>>> I want to build one!
>>>>>>> I did some design research of where they should be placed for a
>>>>>>> postal feedback suit and ended up with a huge headache! ?So, we
>>>>>>> should look into some goggles too...
>>>>>>>
>>>>>>> k
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Jun 2, 2010 at 10:39 AM, Eric Boyd<mrericboyd at yahoo.com
>>>>>>> <mailto:mrericboyd at yahoo.com>>  ? wrote:
>>>>>>>
>>>>>>>
>>>>>>> http://www.behance.net/Gallery/200-LDs-Stage-Suit-icommercial-ca
>>>>>>> sei/493017
>>>>>>>
>>>>>>> ? ? ? OMG, this is the awesome-est light-up wearable outfit I've
>>>>>>> seen yet.
>>>>>>> ? ? ? Lasers make LEDs seem so boring! ?Even the "laser suit sample"
>>>>>>> is wicked
>>>>>>> ? ? ? cool:
>>>>>>>
>>>>>>> ? ? ? http://www.behance.net/Gallery/Laser-suit-sample/464787
>>>>>>>
>>>>>>> ? ? ? Who wants to build one? I'm super keen, and if we build
>>>>>>> multiple units ? ? ? we can push down the cost a little (laser
>>>>>>> diodes are
>>>>>>> expensive...)
>>>>>>>
>>>>>>> ? ? ? Eric
>>>>>>> ? ? ? _______________________________________________
>>>>>>> ? ? ? Cyborg mailing list
>>>>>>>
>>>>>>> Cyborg at lists.noisebridge.net<mailto:Cyborg at lists.noisebridge.net
>>>>>>>> ? ? ? https://www.noisebridge.net/mailman/listinfo/cyborg
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> . . . ?. ?*
>>>>>> _______________________________________________
>>>>>> Cyborg mailing list
>>>>>> Cyborg at lists.noisebridge.net
>>>>>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>>>>
>>>> _______________________________________________
>>>> Cyborg mailing list
>>>> Cyborg at lists.noisebridge.net
>>>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>>>
>>> _______________________________________________
>>> Cyborg mailing list
>>> Cyborg at lists.noisebridge.net
>>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>
>>
>>
>> --
>> Jacob Rosenthal
>> Champion | HeatSync Labs
>> 480.389.4743 | jacob at heatsynclabs.org
>> Twitter: @heatsynclabs @jacobrosenthal http://www.heatsynclabs.org
>>
>> _______________________________________________
>> Cyborg mailing list
>> Cyborg at lists.noisebridge.net
>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>
>>
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 03 Jun 2010 14:50:55 -0700
> From: Eric Boyd<mrericboyd at yahoo.com>
> Subject: Re: [Cyborg] [Bulk] Re:  200 laser diodes
> To: Hephaestus<hephaestus at antipunk.net>
> Cc: cyborg at lists.noisebridge.net
> Message-ID:<4C0823BF.7000504 at yahoo.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Not too late yet.  I'm planning to order very late today - in time to get shipped before the weekend from China.  I'm hoping we can have these suckers before the end of next week!
>
> With Sean's extra 10 units and your $50, we need at least 12 dozen now, which is awesome, I've always wanted a gross of lasers.  I wonder what the flock term for lasers is, perhaps a "blind of lasers"?!? :-)
>
> Eric
>
>
>
> On 6/3/10 2:35 PM, Hephaestus wrote:
>> If it's not too late (wow, this all happened so fast!), please put me
>> down for about $50 worth.
>>
>> --
>> Hephaestus
>>
>> On Wed, Jun 2, 2010 at 11:36 PM, Jacob Rosenthal
>> <jjrosent at heatsynclabs.org>   wrote:
>>> Greetings all,
>>> Jacob from HeatSync Labs lurking here.  If you need any more for
>>> scale I'll go in on 50 bucks if Eric or someone would be willing to
>>> ship them out to us in AZ.
>>> Thanks!
>>> Jacob
>>>
>>> On Wed, Jun 2, 2010 at 11:13 PM, Eric Boyd<mrericboyd at yahoo.com>   wrote:
>>>>
>>>> Well that was fast, here are the Q&A, both good news!:
>>>>
>>>> <<
>>>> Tim Lee: Hi,Eric,
>>>> Glad to receive your email.
>>>> 1)Yes,the goods have drive already,you only put into DC3-5V,red
>>>> power lead is "+",and black lead is "-".you don't need limit its current.
>>>> 2)100units have 5% discount.means $2.54 per unit.
>>>>
>>>> Best regards
>>>> Tim Lee
>>>> Shenzhen Fuzhe Technology Co.,Ltd.
>>>> FU-Lasers for you!
>>>> Tel: +86-755-84528255
>>>> Fax: +86-755-84528390
>>>> Email:fulaser at gmail.com
>>>> MSN:mandy-lees at hotmail.com
>>>>
>>>>
>>>>    >>>   mrericboyd Wed Jun 02 22:26:24 PDT 2010>>>  I'm looking at
>>>> your "Civil Class 3A red 650nm 5mw dot diode laser module", I have
>>>> two questions:
>>>>
>>>> 1) Does it have the drive electronics already included? i.e. can we
>>>> just hook up a voltage source to the two leads and expect it to
>>>> work? Do we have to limit the current or will it do that?
>>>>
>>>> 2) I'm looking for 100+ units, do you offer a volume discount price?
>>>>
>>>> Thanks,
>>>> Eric
>>>>    >>
>>>>
>>>>
>>>>
>>>> On 6/2/10 10:26 PM, Eric Boyd wrote:
>>>>> I've sent a question to the seller about the included electronics
>>>>> and volume discount price.  Here's hoping they have someone who
>>>>> reads&  writes english :-)
>>>>>
>>>>> Eric
>>>>>
>>>>>
>>>>>
>>>>> On 6/2/10 1:47 PM, Rachel McConnell wrote:
>>>>>> Oh man laser outfit... I sure want some.  That link gives pricing
>>>>>> for 1-10, maybe if we end up wanting a bunch more they might
>>>>>> provide a further discount?
>>>>>>
>>>>>> I wonder if one could have a built-in smoke machine emitting
>>>>>> particles along with the laser beam for best viewing.  I saw a
>>>>>> smoke machine on an outfit over the weekend, I will see if I can
>>>>>> contact the maker of that and get more details.
>>>>>>
>>>>>> Rachel
>>>>>>
>>>>>> Eric Boyd wrote:
>>>>>>> I sent a contact thing to the dude, asking if he's got any design
>>>>>>> information up anywhere, and about eye-safety of the device.
>>>>>>> Because I think that's the key thing here: can a beam which is
>>>>>>> visible in e.g. a club (dim lights) also be eye-safe?
>>>>>>>
>>>>>>> According to wikipedia
>>>>>>> (http://en.wikipedia.org/wiki/Laser_safety), to be legal (=eye
>>>>>>> safe), the laser must be<5mW, that makes it fall into class IIIa
>>>>>>> (now class 3R).  I found some fairly cheap IIIa laser
>>>>>>> diodes:
>>>>>>>
>>>>>>>
>>>>>>> http://www.aliexpress.com/product-gs/263635799-Civil-Class-3A-red
>>>>>>> -650nm-5mw-dot-diode-laser-module-wholesalers.html
>>>>>>>
>>>>>>> It's not clear to me if you need an external circuit other than a
>>>>>>> current-controlled voltage source to drive these.  I don't think
>>>>>>> so, I think that's what they mean by "module" as opposed to just
>>>>>>> buying the diode.  If you do just need a current controlled
>>>>>>> voltage source, we should be able to drive these directly from
>>>>>>> the North Paw circuit, all we need is some resistors in series with the "motor" outputs.
>>>>>>>
>>>>>>> But I agree that while building the device, we'd need to have
>>>>>>> some goggles.  It'd give you a headache for sure if you caught
>>>>>>> one in the eye more than a few dozen times.
>>>>>>>
>>>>>>> Anyone else interested in bulk ordering of these?  With shipping
>>>>>>> they are going to be about $4 each, so for<$50 you can have a
>>>>>>> pretty decent number of them.
>>>>>>>
>>>>>>> Eric
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 6/2/10 11:52 AM, kristinneidlinger wrote:
>>>>>>>> I want to build one!
>>>>>>>> I did some design research of where they should be placed for a
>>>>>>>> postal feedback suit and ended up with a huge headache!  So, we
>>>>>>>> should look into some goggles too...
>>>>>>>>
>>>>>>>> k
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Wed, Jun 2, 2010 at 10:39 AM, Eric Boyd<mrericboyd at yahoo.com
>>>>>>>> <mailto:mrericboyd at yahoo.com>>      wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> http://www.behance.net/Gallery/200-LDs-Stage-Suit-icommercial-ca
>>>>>>>> sei/493017
>>>>>>>>
>>>>>>>>         OMG, this is the awesome-est light-up wearable outfit
>>>>>>>> I've seen yet.
>>>>>>>>         Lasers make LEDs seem so boring!  Even the "laser suit sample"
>>>>>>>> is wicked
>>>>>>>>         cool:
>>>>>>>>
>>>>>>>>         http://www.behance.net/Gallery/Laser-suit-sample/464787
>>>>>>>>
>>>>>>>>         Who wants to build one? I'm super keen, and if we build
>>>>>>>> multiple units
>>>>>>>>         we can push down the cost a little (laser diodes are
>>>>>>>> expensive...)
>>>>>>>>
>>>>>>>>         Eric
>>>>>>>>         _______________________________________________
>>>>>>>>         Cyborg mailing list
>>>>>>>>
>>>>>>>> Cyborg at lists.noisebridge.net<mailto:Cyborg at lists.noisebridge.net>
>>>>>>>>         https://www.noisebridge.net/mailman/listinfo/cyborg
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> . . .  .  *
>>>>>>> _______________________________________________
>>>>>>> Cyborg mailing list
>>>>>>> Cyborg at lists.noisebridge.net
>>>>>>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>>>>>
>>>>> _______________________________________________
>>>>> Cyborg mailing list
>>>>> Cyborg at lists.noisebridge.net
>>>>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>>>>
>>>> _______________________________________________
>>>> Cyborg mailing list
>>>> Cyborg at lists.noisebridge.net
>>>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>>
>>>
>>>
>>> --
>>> Jacob Rosenthal
>>> Champion | HeatSync Labs
>>> 480.389.4743 | jacob at heatsynclabs.org
>>> Twitter: @heatsynclabs @jacobrosenthal http://www.heatsynclabs.org
>>>
>>> _______________________________________________
>>> Cyborg mailing list
>>> Cyborg at lists.noisebridge.net
>>> https://www.noisebridge.net/mailman/listinfo/cyborg
>>>
>>>
>>
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 03 Jun 2010 23:43:34 -0700
> From: Eric Boyd<mrericboyd at yahoo.com>
> Subject: Re: [Cyborg] 200 laser diodes
> To: cyborg at lists.noisebridge.net
> Message-ID:<4C08A096.6030105 at yahoo.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> OK, I've placed the order.  We got 15 dozen, placing us in the highest discount category offered, go group orders!
>
> I don't know how long DHL will take to get it here, but most likely we'll have them by the end of next week, certainly by the end of the week after that.  When we get them I'll send a message to this list (and
> noisebridge-discuss) about pickup.  I'm at noisebridge on a fairly regular basis, of course, but how does the cyborg meetup time (Sunday
> afternoons) sound to everyone for a group geekout and delivery time?
>
> Also, buyers owe me money.  I'll take cash or paypal on delivery of the lasers.
>
> Details from the order on the wiki:
> https://www.noisebridge.net/wiki/Small_Laser_Module_Order
>
> Eric
>
>
>
> On 6/3/10 2:50 PM, Eric Boyd wrote:
>> Not too late yet.  I'm planning to order very late today - in time to
>> get shipped before the weekend from China.  I'm hoping we can have
>> these suckers before the end of next week!
>>
>> With Sean's extra 10 units and your $50, we need at least 12 dozen
>> now, which is awesome, I've always wanted a gross of lasers.  I wonder
>> what the flock term for lasers is, perhaps a "blind of lasers"?!? :-)
>>
>> Eric
>>
>>
>>
>> On 6/3/10 2:35 PM, Hephaestus wrote:
>>> If it's not too late (wow, this all happened so fast!), please put me
>>> down for about $50 worth.
>>>
>>> --
>>> Hephaestus
>>>
>>> On Wed, Jun 2, 2010 at 11:36 PM, Jacob Rosenthal
>>> <jjrosent at heatsynclabs.org>    wrote:
>>>> Greetings all,
>>>> Jacob from HeatSync Labs lurking here.  If you need any more for
>>>> scale I'll go in on 50 bucks if Eric or someone would be willing to
>>>> ship them out to us in AZ.
>>>> Thanks!
>>>> Jacob
>>>>
>>>> On Wed, Jun 2, 2010 at 11:13 PM, Eric Boyd<mrericboyd at yahoo.com>    wrote:
>>>>>
>>>>> Well that was fast, here are the Q&A, both good news!:
>>>>>
>>>>> <<
>>>>> Tim Lee: Hi,Eric,
>>>>> Glad to receive your email.
>>>>> 1)Yes,the goods have drive already,you only put into DC3-5V,red
>>>>> power lead is "+",and black lead is "-".you don't need limit its current.
>>>>> 2)100units have 5% discount.means $2.54 per unit.
>>>>>
>>>>> Best regards
>>>>> Tim Lee
>>>>> Shenzhen Fuzhe Technology Co.,Ltd.
>>>>> FU-Lasers for you!
>>>>> Tel: +86-755-84528255
>>>>> Fax: +86-755-84528390
>>>>> Email:fulaser at gmail.com
>>>>> MSN:mandy-lees at hotmail.com
>>>>>
>>>>>
>>>>>     >>>    mrericboyd Wed Jun 02 22:26:24 PDT 2010>>>
>>>>> I'm looking at your "Civil Class 3A red 650nm 5mw dot diode laser
>>>>> module", I have two questions:
>>>>>
>>>>> 1) Does it have the drive electronics already included? i.e. can we
>>>>> just hook up a voltage source to the two leads and expect it to
>>>>> work? Do we have to limit the current or will it do that?
>>>>>
>>>>> 2) I'm looking for 100+ units, do you offer a volume discount price?
>>>>>
>>>>> Thanks,
>>>>> Eric
>>>>>     >>
>>>>>
>>>>>
>>>>>
>>>>> On 6/2/10 10:26 PM, Eric Boyd wrote:
>>>>>> I've sent a question to the seller about the included electronics
>>>>>> and volume discount price.  Here's hoping they have someone who
>>>>>> reads&  writes english :-)
>>>>>>
>>>>>> Eric
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 6/2/10 1:47 PM, Rachel McConnell wrote:
>>>>>>> Oh man laser outfit... I sure want some.  That link gives pricing
>>>>>>> for 1-10, maybe if we end up wanting a bunch more they might
>>>>>>> provide a further discount?
>>>>>>>
>>>>>>> I wonder if one could have a built-in smoke machine emitting
>>>>>>> particles along with the laser beam for best viewing.  I saw a
>>>>>>> smoke machine on an outfit over the weekend, I will see if I can
>>>>>>> contact the maker of that and get more details.
>>>>>>>
>>>>>>> Rachel
>>>>>>>
>>>>>>> Eric Boyd wrote:
>>>>>>>> I sent a contact thing to the dude, asking if he's got any
>>>>>>>> design information up anywhere, and about eye-safety of the
>>>>>>>> device.  Because I think that's the key thing here: can a beam
>>>>>>>> which is visible in e.g. a club (dim lights) also be eye-safe?
>>>>>>>>
>>>>>>>> According to wikipedia
>>>>>>>> (http://en.wikipedia.org/wiki/Laser_safety), to be legal (=eye
>>>>>>>> safe), the laser must be<5mW, that makes it fall into class IIIa
>>>>>>>> (now class 3R).  I found some fairly cheap IIIa laser
>>>>>>>> diodes:
>>>>>>>>
>>>>>>>>
>>>>>>>> http://www.aliexpress.com/product-gs/263635799-Civil-Class-3A-re
>>>>>>>> d-650nm-5mw-dot-diode-laser-module-wholesalers.html
>>>>>>>>
>>>>>>>> It's not clear to me if you need an external circuit other than
>>>>>>>> a current-controlled voltage source to drive these.  I don't
>>>>>>>> think so, I think that's what they mean by "module" as opposed
>>>>>>>> to just buying the diode.  If you do just need a current
>>>>>>>> controlled voltage source, we should be able to drive these
>>>>>>>> directly from the North Paw circuit, all we need is some resistors in series with the "motor" outputs.
>>>>>>>>
>>>>>>>> But I agree that while building the device, we'd need to have
>>>>>>>> some goggles.  It'd give you a headache for sure if you caught
>>>>>>>> one in the eye more than a few dozen times.
>>>>>>>>
>>>>>>>> Anyone else interested in bulk ordering of these?  With shipping
>>>>>>>> they are going to be about $4 each, so for<$50 you can have a
>>>>>>>> pretty decent number of them.
>>>>>>>>
>>>>>>>> Eric
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On 6/2/10 11:52 AM, kristinneidlinger wrote:
>>>>>>>>> I want to build one!
>>>>>>>>> I did some design research of where they should be placed for a
>>>>>>>>> postal feedback suit and ended up with a huge headache!  So, we
>>>>>>>>> should look into some goggles too...
>>>>>>>>>
>>>>>>>>> k
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Wed, Jun 2, 2010 at 10:39 AM, Eric Boyd<mrericboyd at yahoo.com
>>>>>>>>> <mailto:mrericboyd at yahoo.com>>       wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> http://www.behance.net/Gallery/200-LDs-Stage-Suit-icommercial-c
>>>>>>>>> asei/493017
>>>>>>>>>
>>>>>>>>>          OMG, this is the awesome-est light-up wearable outfit
>>>>>>>>> I've seen yet.
>>>>>>>>>          Lasers make LEDs seem so boring!  Even the "laser suit sample"
>>>>>>>>> is wicked
>>>>>>>>>          cool:
>>>>>>>>>
>>>>>>>>>          http://www.behance.net/Gallery/Laser-suit-sample/464787
>>>>>>>>>
>>>>>>>>>          Who wants to build one? I'm super keen, and if we build
>>>>>>>>> multiple units
>>>>>>>>>          we can push down the cost a little (laser diodes are
>>>>>>>>> expensive...)
>>>>>>>>>
>>>>>>>>>          Eric
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>>>> Jacob Rosenthal
>>>> Champion | HeatSync Labs
>>>> 480.389.4743 | jacob at heatsynclabs.org
>>>> Twitter: @heatsynclabs @jacobrosenthal http://www.heatsynclabs.org
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>
>
> ------------------------------
>
> Message: 5
> Date: Fri, 04 Jun 2010 01:00:31 -0700
> From: Eric Boyd<mrericboyd at yahoo.com>
> Subject: [Cyborg] wearable fog machines
> To: "cyborg at lists.noisebridge.net"<cyborg at lists.noisebridge.net>
> Message-ID:<4C08B29F.9050303 at yahoo.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> So, we're probably going to need fog machines of some sort in order to make the beams from the laser properly visible.
>
> There are basically three types of fog generators:
>
> 1) Chemical, using heat to vaporize "fog juice". This is what clubs use.
> They typically require a ~kW of power for the heater, and 5 minutes to warm up. Obviously that'll never be wearable.  But, maybe some small wearable version could be built somehow?  I'm thinking of some kind of tiny heater, and a way to "drip" the fog juice.  Not sure how much fog you could get that way though, even if you pulled it off. Almost certainly not the solution we need.  Interestingly, you can get these fog machines surprisingly cheap, I found several at the $50 price point.
>    Fog juice is about $20/gallon.  Does noisebridge need a fog machine?!?
>
> 2) Ultrasonic.  Basically, mechanically force vapor out of water.  Makes a heavy (sinking) fog.  Still has fairly large power requirements, typically 24V @>1 amp, i.e. 25W or more - possible for batteries, it'd be heavy, but doable.  This usually only yields a small amount of fog, suitable for e.g. a small fountain.  Maybe that's sufficient.  Can't be used with fog juice, it gums up the ultrasonic emitter (darn!).  Overall I don't think it could be made to work.
>
> 3) The winner: dry ice.  Simply add water to dry ice and presto, fog.
> Primary concern is safety, dry ice is dangerous.  Still, I think this is the clear choice.  You could have a little hand-pump to meter out the water into a chamber in e.g. a backpack, and tubes to guide the fog where you want it. Bonus points if you can engineer the dry-ice chamber into your laser costume somehow :-).  Anyone know where I could buy some dry ice in the Mission?
>
> One final thing: you could just actually use smoke, i.e. burn something.
>    It might be harder to control that though.  Perhaps the use of something like Smoke Candles?
>
> http://www.qasupplies.com/2001000.html
>
> Eric
>
>
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> End of Cyborg Digest, Vol 15, Issue 6
> *************************************
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