How to make a wood rosette
I’ve been making burr walnut rosette for Jonathan’s 12 fret steel-string cutaway.
Firstly, I cut thin book-matched slices from a solid billet of burr walnut; commercially made, knife cut veneers are only 0.6mm thick which, I feel, doesn’t give you enough thickness to play with. Another alternative is to use the off-cuts from the back or sides and I’ve done this on rosewood guitars to good effect.
The thin slices are stuck together (edge to edge) with a waterproof glue and then temporarily fixed down to a work board with hide glue (water soluble- see where I’m going with this?).
I use the router, with my compass attachment that I made for it, to cut the recess that the rosette will be inlaid in to. Jonathan has requested a Sitka spruce soundboard and this board is a very nice one with lots of medullary rays- these are what give the soundboard that silky looking effect that some players drool over.