After completing work on the post cap, which also serves as a support for the upper tier of beams, I commenced the work on the dodai, or sill pieces for the lantern housing. These are to be partially housed in the upper tier of beams, which is a more stable and interlocked arrangement in general. The dodai themselves are joined with the same half-laps with mitered abutments I have been using elsewhere in this project. Here are the 4 sill pieces after most of the joinery cut out has been concluded:
I checked the fit of the dodai pieces as I fittend them to one another:
Also note in the above picture (and in some of the ones to follow) that the mortises for the lantern housing posts, which I elected to orient diagonally, have been processed at the dodai joint intersections.
After much fiddling, the first piece of sill was fitted. Here it is about 1/32″ short of fully down in the housings:
The nose atop of the diagonal support beam has been planed to a slope so as to shed and water that lands on it. Fitting the housing of the dodai to the sloped abutment takes a little extra time. The end grain of the sill pieces has yet to be finish planed.
The next installment in this thread will deal with the fitting of the lantern housing posts, which are splayed in two directions and thus involve the same sort of cross-section modification and compound geometry as we see in Japanese splayed sawhorses. See you next time at post 12.