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Bob Hayes: Printing an R40 Crossing
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Bob Hayes: R40 Crossing Finished Model
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Bob Hayes: geometry
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Bob Hayes: sleeper
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Bob Hayes: railprofiles
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Bob Hayes: trackconnector
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Bob Hayes: Printed R40 Crossing
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Bob Hayes: R40 Crossing with Curve
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Bob Hayes: R40 Crossing with Stub Switch
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Bob Hayes: R40 Crossing in Action