Hi John

I will use the file as reference . Thanks.

Christopher Chruickshank sourced the NRM drawings for the wheels and I intend to
model them in strict scale of 17/32 but wonder if 9F builders have any comments
to make with regards the final detail e.g. Crank throws, axle size.

I will up load the 3D drawings to the Yahoo group files area when the first of
the set is finished.

Constructive comments would be much appreciated.

Regards


Francis


----- Original Message -----
From: John Baguley
To: halfinchlivesteamforum@...
Sent: Sunday, March 22, 2009 9:41 AM
Subject: [Half inch live steam forum] Re: Definative details for the tyre
profiles of 2 1/2" standard Gauge


Hi Francis,

the 2½" does indeed have a set of standards and I've uploaded a copy to the
files section. These do appear to differ in certain areas from the Gauge 3 ones
so you have a choice!

I would imagine that the Gauge 3 ones have been altered to suit the running
conditions on their much closer to scale track rather than the passenger hauling
tracks used by the 2½" Society.

John

--- In halfinchlivesteamforum@..., "francis_leach"
<FRANCIS.LEACH@...> wrote:
>
> Gentlemen
>
> I am new to the group but wish to immediately seek assistance.
>
> I am producing 3D models for the quality casting of wheels sets for a BR
standard 9F. These are to be investment cast in a gunmetal with a machined steel
tyre.
>
> Unfortunately I do not have the dimensional details of the final form of the
tyre in this gauge. Can any one provide a drawing?
>
> The final details of the wheels will be published to this group in the files
area
>
> Best regards
>
> Francis Leach
> www.3d-companions.com
>




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