”Bangdoo-sanji” in Korean is almost similar with ”tusk-tenon” in English.
Let me show you the illustrated picture.
Bangdoo means the tenon extends beyond the through mortise,
and Sanji means wedge.
If you have “Handbook of joinery” of “the art of woodworking”,
You will be able to see “tusk tenon” at page 106.
Back to my project,
I chose walnut for sanji (wedge).
But I think ebony or bubinga would be better choice.
Now, let me show you several photo…
making a tapered slot at the tenon shoulder of siderail…
trimming the slot using file, after chiseling…
the foot board met with the siderail…
test…. good job, J !!
and… center supporter
There is no something to tell.
The whole of components are ready.
-- Falling in love with wood... J. Park , South Korea