J. Clarke wrote:
Chris Friesen wrote:
Lew Hodgett wrote:

When you figure out a way to use a box joint to replace a half blind
dovetail for attaching a drawer front to a drawer side for example,
come on back and we'll talk some more.

I don't see the problem. Use a router with a bit the size of the
desired fingers. Same mechanism as half-blind dovetails.

Not much point though except maybe on a really tiny box where you
could use a 1/8" straight bit for itty bitty fingers.

The problem with that approach is that the diameter of the router bit has to
be dead nuts accurate, which in my experience most of them aren't, or else
you need to do some fine tweaking on spacing to avoid a joint that is too
loose or too tight. With dovetails you can fine tune the fit with cut
depth, with box joints you don't have that option.

The Leigh jig uses an elliptical bushing and a bit smaller than the
desired finger size. You turn the router base slightly to adjust the fit.

Woodworking magazine used a pattern bit smaller than the desired finger
size and aluminum tape on the sides of the fingers to adjust the fit.

Chris