9fingers wrote:Chas, do you use a template to make those segments?
Bob, I started years ago by marking them out with a card template & cutting the segments freehand on the bandsaw then completed the profile with a jig on a disc sander and bespoke drum sander, time consuming and excessive trial fit fiddling.
This led to a bit more thought on devising something repeatable in the way of a jig for the bandsaw.
The segments are currently used straight off the bandsaw, the same jig is used to cut both curves, the 'inner' curve being cut first then with the piece clamped against a fixed location stop the outer curve is cut.
In theory the two radii are out by the thickness of the blade kerf but in practice within the range of wood movement etc.
It does need strict attention to blade sharpness and setup each time I use the jig and as currently designed the jig design is specific to set segment numbers.
I've never got round to producing an adjustable jig, or more fixed function ones to accommodate more segments.
If I ever get around to tuning my brain into programming my little CNC It would appear to be an ideal solution.