[Swansea Hackspace] LED diffuser

[Tim Moore]

Many thanks Ceri, I've ordered one and I'll see what I can get out of it !
Price is brilliant !

:  ))))

Tim

On 17 November 2014 17:16, Ceri Clatworthy <ceri.clatworthy at gmail.com>
wrote:

>
> http://www.banggood.com/5W-Round-COB-LED-Bead-Chips-For-Down-Light-Ceiling-Lamp-DC-15-17V-p-919789.html
>
> On Sun, Nov 16, 2014 at 6:12 PM, Tim Moore <timmoore47 at gmail.com> wrote:
>
>> 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
>>>>>
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>>>>
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>>>>
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>>
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