Diffuser for Puck.js LEDs - first take one ping pong ball

[espruino-discuss]

Posted at 2016-12-21 by Andrewmk

The standard silicone cover is very nice but doesn't really diffuse the LEDs enough to mix the colours properly. If you carve a hole in a ping pong (table tennis) ball and pop it over the top instead you get a lovely diffused glow:

https://www.youtube.com/watch?v=a59b0fkmXQk

Andrew

[gfwilliams]

Posted at 2016-12-21 by @gfwilliams

Wow - thanks - that's a lot better!

[espruino-discuss]

Posted at 2016-12-21 by flo

That's fun !

[espruino-discuss]

Posted at 2016-12-21 by JamesS

Nice hack

[espruino-discuss]

Posted at 2016-12-22 by François

❤

[espruino-discuss]

Posted at 2016-12-26 by thedamos

Very nice. I wish it were brighter, but it does work quite well!

[espruino-discuss]

Posted at 2017-02-01 by DrAzzy

Pingpong balls are awesome for that.

(both of those strings are running Espruino on ESP8266's - code is here: https://github.com/SpenceKonde/AzzyProjects/blob/master/Animate/Version8.js )

Note that I would be uncomfortable with the pingpong ball you picked (depending on where it will be and what will be around it) - that looks like a real pingpong ball. They're made with nitrocellulose, and hence are very flammable (take the scraps from that ball outside, hold in tongs, and try to ignite it - if they burst into flames, they're the nitrocellulose ones). I use the cheapo ones, which feel like they're just plain old polypropylene or polyethylene - they're not as good as diffusers though, so I cut them in half and glued one half inside the other, and that looks much better.

Attachments:

• 20170120_003620.jpg

[espruino-discuss]

Posted at 2017-02-02 by @allObjects

@drazzy... great improvement! ...your own night sky! Where is the milky way? ;)