so, I got that repair job out in the mail today (turned out to be not only full-grown-horse, but a Clydesdale), and meantime I have been working away at the Nutcases. I've got the innards outed (there's no more middle in there), cleaned up, checked for fit, and will have them sealed before off-to-bed. Tomorrow, I'll be cutting some squonk and shaping the shells. I really hope to be getting into finishing early Thursday.
Meantime, I just wanted to broadcast something I've been discussing in PMs lately.
This is about what kinds of woods might be appropriate for Nutters; and I've been thinking that the cap is a bit wider than I think is suitable for "crosscuts" of "straight grain" wood.
Meaning to say that, if all the fibers are running in more or less the same direction ("straight grain"), then the movement of wood tends to become more pronounced in one particular direction or plane. (imagine wee fibers of string all swelling and shrinking . .. they get fatter/skinnier, not longer/shorter).
So, when you get a relatively thin "crosscut" of wood, that's much wider than it is tall . .. you've got a bunch of side↔side motion and no body or ↑↓ structure to keep it in check . . .. consequently, more likelihood of warping.
I'm certainly not saying "no" to straighter grain woods for Nutters; but I am saying that you're increasing your chances (quite a bit, actually) of the cap warping and the seam (cap↔body) getting a bit gappy. The mod oughta still work fine; so it's not critical .. . . but there it is.
In a burl, the fibers are a'chaos. Burls tend to move (expand contract) much more uniformly (in all directions, evenly), and are thusly less prone to warping like that . . .. and there is no crosscut of a burl, really .. . . for the same reason.
Lastly, I'll mention, that if you're wanting to take a chance on a straight grain wood for Nuttercap, some certainly move less than others, and the denser, oilier, more stable woods are probably going to fare better than the softer, more movement-ridden woods. (i.e. Cocobolo is going to beat Maple by a long shot).
Thanks for that detailed info! You're always a wealth of knowledge