railwaymad's blog
Scissors crossing
This is IT! It all started with "I wonder if I can build a curved scissors....." Details are: Main lines are 66 inch and 68 inch nominal radius; turnouts with straight road are 66 inch nominal radius with a frog angle of 7.5 degrees (approx # 8); curved turnouts are nominal 68/36 inch radius with theoretical frog angle of 8.1 degrees (approx # 7) diamond crossing has two curved roards of nominal radius 36 inch. Rail is code 100 and ties are 1/16th inch PCB
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