Closing multiple contour lines with z-height and preparing for print - Rhino for Windows - McNeel Forum

I can’t figure out how to solve this: 1 I want to close all of my contour lines with different heights (z-value) (main question). 2 Lay them out on the world plane, making them ready for laser cutter, maybe numbering them - the most efficient way?

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Fig. 48: Nudge key directions - RhinoCentre

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Fig. 45: Turn on off SmartTrack - RhinoCentre

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Tutorial for contouring in Rhino for Laser cutting. Part 1