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21mm gauge wheel & track standards


 

Hello,

I am building a short 3 foot [21mm gauge] line as a pilot project. I'm using the Slaters wheels.

Today I'm building the first point. I can't find any data on the track or wheel standards?other than measuring the wheels. What I need to know is the flangeway clearance to use in the crossing.

Back-Back: 19mm?
Flange thickness: 0.5mm
Back-Front: 19.5?
Check gauge: 19.5
Track gauge: 20mm
Wheel flange & tread: 3mm

I have the parts cut and ready to go. I'm inclined to make the flangeway clearance 1mm [thickness of a wooden coffee stirrer] and see how it goes.?

Advice welcome.

David?

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