Straight Spiral

 From:  gunter511
8345.9 In reply to 8345.8 
Hi OSTexo,

That's what I'm able to get to but that's not what I'm looking for. If you notice the helix is not in the centre of the two vertical lines. It is off to one side. I'm looking for it to be in the centre while still connecting to the top and bottom vertical lines.

Many thanks,
Gunter