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1:35th Muir Hill rail tractor

Started by Bernhard, December 02, 2020, 07:00:00 AM

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Hauk

Regards, Hauk
--
"Yet for better or for worse we do love things that bear the marks of grime, soot, and weather, and we love the colors and the sheen that call to mind the past that made them"  -Junichiro Tanizaki

Remembrance Of Trains Past

finescalerr

It's always a treat to watch your models come together. -- Russ

Bernhard

The drive of the rail tractor is the next assembly.
(Photos: Colin Copcutt)

Bernhard

The 3D-model.

Bernhard

The wheel bearings are first pre-milled as a cross-sectional profile, ...

Bernhard

... then cut into slices with a circular saw blade, ...

Bernhard

... and then drilled. Done.

Bernhard

The chains are etched and glued together from three layers.

Bernhard

The chain guards also consist of etched parts. The sheet metal strip on top is annealed to make it easier to bend into shape.

Bernhard

The individual parts are soldered and glued together.

Bernhard

Holders for fixing the chain guards.

Bernhard

Now the drive can be installed in the frame.

Bernhard

And then the rail tractor stands on its own wheels for the first time.

Bernhard

Barney

Very nice -Enginerring in miniature perfect  - are the PE chains available or did you have them made to your requirements
Barney
Never Let someone who has done nothing tell you how to do anything
Stuart McPherson

Bernhard

#44
Barney, I have the chain etched as needed because axle distance and number of teeth on the sprockets are always different.

Bernhard