[Robotgroup] Hauntlites- Review, thoughts, Lessons learned, and improvements...

[Def Egge]

At 12:22 2006/09/29 -0500, you wrote:
>Def Egge wrote:
>> Enlarge the hold in the cardboard LED retainer?  We originally thought that
>> the extreme sensitivity was a liability.
>
>Yup. Our perceptions had a direct run-in with reality yesterday. Now we
>know that more sensitive to IR = better. ;)
>
>> Sandpaper might be less effective than, say, acetone.  I have some here if
>> we need it.  The LEDs could be roughened without unsoldering...no risk of
>> damaged leads as per sandpaper.
>
>Would good ol'e nail-polish remover do that? If so, my wife has that
>stuff somewhere... :)

Apparently, no.  I have just tried acetone, toluene, xylene, plus a mixture
of the latter two.  No evidence of a surface change, whatsoever.

Ed has informed me that the plastic capsule is an epoxy and difficult to
chemically re-work.  A hot acid bath may etch the surface but desoldering,
sanding, and resoldering might be quicker.  If we decide to go that route,
we should check with him for the acrylic disks - with a hole in the middle
- to mount the LEDs through (and circuit board to).


All the best....

Mike