Homebrew PCBs

>
>
> Good idea Carl, I like the looks of your mounting. I'm looking at the 90mm
> size (isn't "bigger" always better?<:)
>
> Ken
>
> If you want more light/leds you could use multiple different size rings
and
mount them concentrically.



Look on eBay for 'UFO lights' or 'camping lights'.  Same thing but in a
case, powered by 3 AA batteries.  They have a hole in the middle (~35mm) so
you can slide them over a pole.  You can always remove more of the middle
section to make the hole bigger, nothing there but the battery holders.

http://www.dansdata.com/ringlight.htm

Half way down you can see a picture with the guts.  Take out the battery
clips and hit it with a hole saw.

Still plenty exactly the same as these on eBay for under $10.  I got a
couple more a month of so back, for putting on drills etc.

Dunno why he didn't save the case.  If you've got a lathe handy you can
machine a piece of plastic pipe to fit back into the middle to neaten things
up.

Tony


- Handy tip: you need to twist, then pull to get it apart.  You lose the
latch when you bore out the middle.