Assembly of the upper case for the MFA cupboard began this week. It started with plowing the grooves for the soffit that will seal part of the upper case. The cornice hangs down past the top edge of the trapezoidal section; so positioning this groove has to be determined by a test-fit of the two sections of the case.
It was also time to bore the peg holes to assemble the cornice frame. The stiles are maple, which produced a standard-shaped hole from the reaming action of a piercer bit. (This bit is something like the slightly-more familiar spoon bit.) As this bit comes around to the transition from cutting along the fibers to cutting across the end-grain of the stock, it tears things up a bit as it digs in. This results in the pointed, somewhat oval hole. Some woods, some bits, result in greater or lesser exaggeration of this shape.
Then I pegged the cornice to the rear frame; and test-fitted this section to the trapezoidal part. And then simply nailed the two sections together.
Once I had the nails started, I laid the piece on its back, so I could drive the nails home.
Here is a detail of the existing cupboard in New York, showing the toe-nailed rear stiles of the trapezoidal section meeting the rear frame’s stiles.
Now my cupboard has gone to the musuem for a test-fit in the installation. I hope to goodness it’s the right size. If it is, then when I get it back, it’s time for the soffit, moldings and painting.