Signal Heads

[NW Modeling List]

Jeff,
Do you have a printer?  Have you used Shapeways?  Do you have a CAD package
that can output the necessary file types?  I would love to try this new
technology but have not had the time to learn the required tools yet.  I
have many pictures and drawings from which to create the data files that
would be needed to "print" the parts.  Is there a minimum feature size
associated with the materials/process?  I would certainly be happy to work
with someone to try to produce some sample parts.
Jim Cochran

On Mon, Jun 20, 2016 at 4:56 PM, NW Modeling List <nw-modeling-list at nwhs.org
> wrote:

> This sounds like a good place for 3D printing!
>
> Jeff Cornelius
>
> On Jun 20, 2016, at 2:12 PM, NW Modeling List <nw-modeling-list at nwhs.org>
> wrote:
>
> Jim B,
> If you just want intermediates that show clear, approach and "stop and
> proceed", the old IHC targets are not too bad.  They have shades molded in
> and a ridge/lip around the back to hold a PCB that would be populated with
> LEDs.  On the down side, all of their features are too thick to be
> prototypically accurate in scale.  As you know, on the prototype the
> circular target was just a relatively thin disc of sheet metal with holes
> that allowed the shades that were attached to the lamp assemblies to
> protrude.  The individual lamp assemblies were mounted to the spider (hub
> with pipe spokes) and the hub was affixed to the mast.  Metal strips
> extended from the ends of four of the spoke pipes to the back of the target
> disc and were attached thereto by ? rivets?  Making a good scale model is
> tricky due to the quite small dimensions of some of these features.  I have
> been wanting to try etching brass sheet for ladders and other parts of
> these signals.  Would the resource you used for the etched parts of your
> car kits still be available?  I have some preliminary mask artwork and I
> think there might be enough interest to warrant a small production run.
> Jim Cochran
>
> On Mon, Jun 20, 2016 at 1:08 PM, NW Modeling List <
> nw-modeling-list at nwhs.org> wrote:
>
>> What N&W signal heads, in HO scale, are folks using for signaling on
>> their N&W model railroads?  Pros/cons?
>>
>> Thanks.
>>
>> Jim Brewer
>>
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