Friday, August 3, 2018

Colgate EALL (16)

Next on the list were the two staggered shelves in the Japanese flanking alcove, or tokowaki. This illustration shows the arrangement:

Colgate EALL tokowaki

I used some figured cherry for the shelf boards and followed the traditional  proportioning rules of thumb for both shelf thickness and spacing. I worked closely with the EALL department head, a Japanese woman, to come to a mutually pleasing arrangement for the shelves.

Cutting a pair of boards for shelves is, on initial consideration, one of the simpler tasks a woodworker might find themselves faced with, however these shelves are a little trickier than they might otherwise appear.

In the Japanese context, alcoves are where some of the most refined woodwork in a building will be performed, and compared to the rest of the interior, materials of the best quality and with more refined joinery are employed.

The end of a solid wood shelf presents end grain, and this end grain is to be concealed. The way of doing that is to fit an asymmetrical double-dovetailed sliding key.

Here’s a look at the trench on one board after cutting was 99% completed:

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You can see from this view that the lower portion of the trench has a smaller sliding dovetail than the flared opening.

A view from the other end:

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One has to take considerable care in cut out not to damage the delicate arris all the way around the trench opening.

Here’s the trench completed on the other shelf:

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Another view:

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The double dovetail keys were fabricated with a combination of table saw work and milling machine work:

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The picture above shows the key sticking out further than it will be when done, and shows the end which will be buried in the wall.

This is the viewed corner after the double-dovetailed sliding key is fitted, and, in case it was not obvious, the key going to be trimmed right back to the end of the board soon enough:

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If the key were trimmed before final fitting, it would be rather difficult to remove. So, I leave it to protrude about 1/2″ for these initial steps, so it can be readily tapped out with a hammer.

The upper shelf has an additional piece which curls up, a component termed a fude-gaeshi. Originally these were fitted to table tops and shelves as a means of keeping scrolls from rolling off, however in recent times they have become more of an architectural ornament. It would be odd, for instance, to put a scroll on a staggered shelf.

I considered for a while making this piece out of another wood which complimented cherry, like avodire, or provided a darker accent, like mahogany, however in the end I went with cherry. My milling machine was most useful for a bunch of the cut out work, with  lot of hand tool finishing required in the end.

The completed fude-gaeshi with three male sliding dovetails cut out of the same block, and the sliding dovetail tranches completed in the upper shelf:

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You an also see in the above photo that the double-dovetail sliding key has been trimmed back. It’s kind of funny in a way, to fit a long-grain key to conceal end grain, as the net result looks an awful lot like like the shelf is plywood/particle board and has been edge-banded.  The irony is not lost on me.

In the fude-gaeshi goes on its three sliding dovetails:

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Then it slides along until the end of the piece is flush with the edge. I thought the fit came out nicely.

Here’s the shorter shelf after the end cap is fitted:



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