Homebrew PCBs

The next thing would be to mount a camera on the drill so that you 
could position the drill properly in the center of the pad. I seem to 
remember someone doing that with software that sees the exact center 
and helps you position correctly. Perhaps a mechanical stage. Of 
course we're almost at cnc by then, but I think an optical aid would be useful.

Mark




At 05:49 AM 5/24/2010, you wrote:
> >
> >
> > 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.
>
>
>
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>
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