Thanks for replying Graham and Les
It is a sculpture well that was the plan, the top is heavy Les but I was not really worried about the top on this piece it's just a test for something bigger
I'm going mount this piece on something to balance it out.
Graham I watched a you tube video on it but I can't find it at the moment I'll keep looking when I find it I'll send you the link.
But basically you turn your spindle drill a hole up through the middle, then you mark up the outside with some rings in pencil or what ever now the video showed measuring the radius and using this as your spacing for the marking up, I did not do this I just marked a top and bottom line and one in the middle, (I didn't want so many twists)
You then use some form of sticky tape and wrap this around the out side of the wood following the spiral that you want to make. You can then draw a line on both edges of the tape, I think that the first set of rings that you have drawn helps you when your stick down the tape for spacing of the spiral.
Once the spiral lines are drawn, remove the tape then cut along the right hand line with a saw, reverse the spindle (you need to be able to mount from either end) and cut the second line. You then cut away the wood along the saw lines remembering to reverse the spindle of each line, you can carve away the wood but I used a Stuart Mortimer Bine Cutting Disc in a Proxxon take a little at a time in each direction. Once I'd cut down a few mm I used a rasp to form a bit of the shape, then cut down a little further and repeated the process until I had cut through to the bored hole. You done cut right through in one go because once it becomes weak.
Then it's good old sanding.
Hope that make scene if not PM me your number and I give you a ring and talk you through the process.
Good luck post what you make
All the best
Ed
PS Nearly forgot you mark a centre line across the blank at each end so you know where your starting and finishing the spiral.
