[Swansea Hackspace] LED diffuser

[Tim Moore]

Off Topic

I'm try to get some 12v 10W cob white light led chips but all I can find is
the round ones from RS.   Anybody know of a source for the square ones ?

:  )

Tim_1

On 10 November 2014 15:35, Graham Owens <grahamowensuk at googlemail.com>
wrote:

> Hi Jon,  thanks for that, just done some searching, and it seems to be a
> hotly debated topic which is best for table tennis, almost as bad as the
> pic/avr debate lol.
>
> I have found a couple of 'club' balls (plastic) as opposed to 'match'
> balls (cellulose)- i will do some *destructive testing* ;) tomorrow night
> to see how prone they are to catch on fire.
>
> I have to admit, i love how uniform the light is from them :)
>
> Will add some pictures to the site.
>
> Best Regards
>
> Graham
>
> On 10 Nov 2014, at 10:15, jon lilley <jon.j.lilley at gmail.com> wrote:
>
> You could use "practice" ping-pong balls.
> 10 for 99p from China, and they're not made of celluloid, so they're not
> prone to bursting into flame. :)
>
> J
> On 9 Nov 2014 22:16, "Graham Owens" <grahamowensuk at googlemail.com> wrote:
>
>> Gah, the ping pong's give exactly the look I wanted but I don't want to
>> cause a fire hazard, and the triangles look really cool, are safe but are
>> pretty hard to make. (in comparison to sticking a pingpong over an led)
>>
>> Think I will have to keep looking.
>> ------------------------------
>> From: Gerrit Niezen <gerrit.niezen at gmail.com>
>> Sent: ‎09/‎11/‎2014 21:37
>> To: Swansea Hackspace <hackspace at swansea.hackspace.org.uk>
>> Subject: Re: [Swansea Hackspace] LED diffuser
>>
>> This LED triangle creates a beautiful even diffusion using acrylic and a
>> painted cavity:
>> http://www.instructables.com/id/Making-a-great-LED-triangle/ (laser
>> cutter required)
>>
>> With regards to ping pong balls - keep in mind that they’re very
>> flammable:
>>
>> http://dangerousprototypes.com/2012/06/08/warning-ping-pong-balls-are-very-flammable/
>>
>>
>> On 9 Nov 2014, at 20:18, Graham Owens <grahamowensuk at googlemail.com>
>> wrote:
>>
>> It was me,
>>
>> and i have to say they look pretty awesome, very much what i was looking
>> for.
>>
>> Today i have mostly been doing a teach the wife arduino day, and we have
>> come up the a colour changing, temperature sensing pteranodon that flaps
>> its wings when it detects motion.
>>
>> pictures and a video to follow :)
>>
>> On 9 November 2014 20:06, Justin Mitchell <justin at discordia.org.uk>
>> wrote:
>>
>>> Someone was asking about good diffusers for an LED the other day?
>>>
>>> Just seen this article using ping pong balls, looks pretty good.
>>>
>>> https://plus.google.com/u/0/101411395547219906775/posts/fJvzXwBzi4m
>>>
>>> _______________________________________________
>>> Hackspace mailing list
>>> Hackspace at swansea.hackspace.org.uk
>>> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>>>
>>
>> _______________________________________________
>> Hackspace mailing list
>> Hackspace at swansea.hackspace.org.uk
>> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>>
>>
>>
>> _______________________________________________
>> Hackspace mailing list
>> Hackspace at swansea.hackspace.org.uk
>> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>>
>> _______________________________________________
> Hackspace mailing list
> Hackspace at swansea.hackspace.org.uk
> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>
>
> _______________________________________________
> Hackspace mailing list
> Hackspace at swansea.hackspace.org.uk
> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://swansea.hackspace.org.uk/pipermail/hackspace/attachments/20141116/d721c9be/attachment.html>