I adapted code I posted here:
By replacing the purple group (base shape) with the cyan group. Turning these steps into a ramp is easy.
Spiral_Stair_Cone_2021Dec19a.gh (31.2 KB)
P.S. It was only after I implemented a ramp that I realized there is a ramp in the old code with preview disabled. The ‘riser’ and ‘tread’ sliders affect the steepness of the ramp, just as if there were stairs.
Spiral_Stair_Cone_2021Dec19b.gh (31.3 KB) (UPDATED)