Helix  Pics  and drawings 
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Radius of helix and hidden yard
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Profile of baseplate (4 mm plywood) and cork trackbed



Positioning of rods for adjustments of climbing and height between the levels.


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Climbing of bottom level turn from zero to second level.
Distance due to height shown at each rod. 

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Plywood - half turn



Jigsaw marking for  helixturns from 4 mm plywood

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