Actually, finger joint, only good fro straight joints.
Box joint, can be assembled 90 degrees.
Nope. Not always, the tines on a box joint are called "fingers", and
that is why "box joints" are also known, traditionally, as "finger joints".
The method, and nomenclature, predates the modern factory produced
incarnation, and internet/Goggle, by a long shot.
Here's one of our favorites discussing his "box joint" jig:
On Saturday, December 12, 2015 at 7:18:33 AM UTC-8, krw wrote:
If you want to join boards end-to-end, and you have a 4 inch wide board?
End-to-end joining is also critically dependent on alignment, you cannot
tolerate a kink at each joint.
I envision a special machine with a gang of saw blades, a long fence
and clamp for the board, that raises the blades through the work
to make a cut.
The router-bit solution will work for a shallow cigar-box, and take a jig
or well-appointed router table to make accurate joints.
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