Thanks, MrB. I have to be. Bioforms and I do not get along. I simply cannot wrap my head around them. So I have to design/make things - most often vehicles. BTW, Just before I went to sleep I figured out how to make a better railing for my spiral staircase. First thing this a.m. I tried it. I used lathing and then adjust the individual end points of the segments vertically. After that it became a matter of tweaking the rail supports. Those I could not calculate and so had to place by eye. My eyes do not work so great any more. It's been 20 months since I got my eyes checked. Darned VA keeps cancelling my eye appointments but not calling me to reschedule (they're SUPPOSED to call when they canx but it's the government . . . ) I have had 5 eye appointments cancelled so far this year. Got one coming up in a week. Right eye is going. Age-related macular degeneration. (my dominant eye for shooting, wouldn't you know) plus the left isn't getting any better with time.
Anyhow, here is my revised spiral staircase. I think I got it pretty good.