Throwing joinery a couple of curves
My latest project, a free-form globe stand, required joining the concave sides of two curved pieces. Naturally, there is little gluing surface. Here's how I joined the two pieces:
On one piece, I drilled a pilot hole and drove in a wood screw, leaving the head protruding 1⁄4 " or so. In the mating piece, I drilled a counterbore to fit the screw head, as shown. After filling the counterbore with fast-curing epoxy, I joined the pieces, inserting the screw head into the epoxy, and clamped the two pieces together. Be sure to clean up any squeeze-out with acetone before the epoxy cures.
—Sylvio Dugas, Kedgwick, N.B.