Spiral / vertical space from tight to wide

Hi Chris - maybe, by fiddling … try:

  1. Make the vertical line.
  2. Divide, Split=Yes, by the number of turns.
  3. ChangeDegree on the segments to 2.
  4. Join the segments.
  5. CageEdit your spiral with this curve. You’ll see that there is a control point that corresponds to each ‘hump’ in the spiral in a side view. Moving these, or pairs of these, points vertically should get you pretty good control.

-Pascal