Anatomy

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Chris Hall
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Anatomy

Sat Jul 16, 2011 3:05 pm

Here are the Japanese terms for various parts of a hand plane:
Kanna anatomy.jpg
Kanna anatomy.jpg (145.19 KiB) Viewed 6034 times
Notice that the part of the plane block (the dai) which is pulled towards you is referred to as the daijiri (the 'butt'), while the part on the other end, furthest from the user, the the dai-gashira, or 'head'.

The plane pictured is the exclusive kurisuhoru signature model, in unobtanium steel, forged on the rare occasion of the 13th month's full moon..

Here's a look at the dai with a portion cut away so a few more spots can be labeled in the blade opening (itself termed the kō-ana (甲穴), lit. the carapace opening:
kanna anatomy 2.jpg
kanna anatomy 2.jpg (119.8 KiB) Viewed 6032 times
The tsutsumi treatment is usually found only on high class dai for finishing planes with a very tight mouth opening. Such plane blocks are termed tsutsumi-dai (包み台), or, tsutsumi-guchi (包み口). Standard plane blocks without the ledge are termed futsū-dai (普通台) and are perfectly fine for use and less hassle to set up and tune.

Preparing/adjusting the tsutsumi ledge surface properly is done most conveniently with a special crank-neck chisel, like this one:
田斎 両口コテ鑿.jpg
田斎 両口コテ鑿.jpg (150.72 KiB) Viewed 6032 times
The one pictured is made by Tasai and is unusual in that it cuts in both directions. More common is the type with the cutting edge only on one end of the tool.

The more conventional version of the tool, also made by Tasai, in action:
127077516505616323790_201049-1.JPG
127077516505616323790_201049-1.JPG (50.42 KiB) Viewed 6022 times
craigak
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Re: Anatomy

Thu Aug 04, 2011 10:17 pm

Love that chisel!
Craig
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Re: Anatomy

Wed Feb 08, 2012 1:52 pm

What's the sole of the plane called?
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Chris Hall
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Re: Anatomy

Wed Feb 08, 2012 5:01 pm

Ah yes, that is called the dai shitaba (台下端)
craigak
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Re: Anatomy

Wed Feb 08, 2012 7:39 pm

That is a fine-looking paper laminated osae-gane!
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Chris Hall
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Re: Anatomy

Wed Feb 08, 2012 8:13 pm

Yeah, that's why they call it 'white steel' I guess...

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