JOHN:
I like Bob's preferred method, but I would recommend using the flat side
of a soldering iron rather than a match for "expanding" the fiber optic. See
the article I had in the "S Gaugian" earlier this year about "expanding"
fiber optics for vehicle headlights. You will have more control of the final
diameter with a soldering iron. The article will also give you the initial
fiber diameter. The only downside I see to Bob's method is the relative
flexibility of fiber optic strands. They cannot be bent tightly.
All that being written, here's what I did for my GP9 class lamps. This
was before I was exposed to the wonderful world of fiber optics. I drilled
straight through the class lamp casting and CA'd 1.5v bulbs in all four
holes. These are routed to a circuit board that keeps the class lamps and
number boards (more 1.5v bulbs) illuminated all the time while the
headlights (more 1.5v bulbs) are directional. The headlights have acrylic
lenses while the class lamps show just the tip of the bulbs. (As I'm now
more into LEDs, I might, in the future, abandon this old method. LEDs are
totally cool for use with fiber optics and they never burn out.)
Gerry Evans
In Flagstaff
----- Original Message -----
From: "Bob Werre" <[EMAIL PROTECTED]>
To: "John Gibson" <[EMAIL PROTECTED]>
Cc: <>
Sent: Friday, December 30, 2005 8:50 AM
Subject: Re: S-Scale Modeling AM GP9 Classification Lights
> John, I haven't done my GP's yet but for other engines class lights, I
> have used a short piece of fibre optics. With a lit match melt the end
> of the fibre optic pipe where it should for a nice round nub. Run the
> other end near your headlights and the class lights will be lit. A
> little piece of colored photo gel over the pipe will color the class
> lights if desired.
>
> Bob Werre
>
> John Gibson wrote:
>
>>Greetings:
>>
>>Now that I have almost drilled and filed out the number boards on my
>>AM GP9's (yes, Bill Lane it is taken me some time and a lot of filing
>><VBG>), I am getting ready for the next step the classification
>>lights. For those of you who have made the modification to the
>>classification lights, what did you do? My initial thought is to sand
>>the molded on detail flat and cover with a MV Lens. Anybody know what
>>size lens is needed?
>>
>>Thanks as always for your help.
>>
>>Merry New Year!
>>
>>John Gibson
>>On the Donner Pass Route in Rocklin, CA
>>
>>
>>
>>
>>
>>
>>
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> Yahoo! Groups Links
>
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>
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