So there are a few more photos:
after working out a ring, I started drawing the bows outline.
For the centereline I use a laserruler (not primitive but very effective
)
The outline (but hardly visible on the photo)
I started working out the form of the bow.
Unfortunately the wood seems not to be completely dry yet since it is still loosing some weight.
So it might take even longer before I can start floortillering.
Greetings
Stefan