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Japanese hand tools, furniture making and design process.
In the woodworking hand tool context, uzukuri are stiff brushes made of tightly bound fibres of organic origin. Thanks to the use of different fibre materials, they come in 3 levels of fineness.
The primary application of uzukuri treatment aims at creating a textured and/or polished wood surface. As you rub the workpiece back and forth with the rough brush, the wood fibres in the lower density, soft grain aspect (earlywood in most species of timber) are gradually removed. The higher density, hard grain aspect (usually latewood) is also getting worn at least to some extent, but at a much, much slower pace. As a result, you raise the hard aspect of the grain and, in effect, accentuate the grain in the workpiece, 3-dimensionally.
In this post, I restore the blade of a Tsunesaburo kanna, and work on the chipbreaker
A lot has happened since I last wrote something here as I tend to use Instagram for short stories from the workshop these days. I had to impale my thumb on a sharp blade to actually take the time out and write something for this blog. I hope to do that more often (writing, not impaling!). Tsunesaburo Kage I mentioned this kanna on Instagram before; it was made by 3rd generation Tsunesaburo in Super Blue Paper steel. Since it arrived from Japan almost two months ago, the wooden bodyContinue reading “Tsunesaburo kanna restoration: 1. The Look-see.”
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