Figure 3. Head scratching.

Figure  3. Head scratching.

Figure  3. Head scratching.

The objective was to do a challenge that did not entail my iMac (I guess until eventually correct now..): make a chair! This is a classic Chinese / Japanese design and style, or as at minimum as close as I could get by finding out the a single I by now have, and consulting with a colleague who manufactured a single lots of many years back in China (thanks Zhong-Min!). Fig. 1 is the last end result (additionally Veronica the cat) and Fig. 2 is my inital idea (argh extra iMac). This was my first woodworking venture. I applied scrap pine boards, which felt like much less stress. I am going to test great hardwoods next time.

I experienced a few principles:
1. No electrical power equipment.
2. No nails or glue.
3. No sandpaper or paint.

The concept behind Rule #1 was to shell out some ‘quality time’ with the wood, applying only hand applications, numerous of them Japanese. This intended expending _much_ high-quality time discovering how to sharpen the blades! But boy did they finish up sharp…

The thought powering Rule #2 was to find out how to make mortise and tenon joints. I ended up earning twelve pegged, blind (i.e. ‘stub’ or ‘stopped’) tenon joints. The trick listed here was that each joint was at a 97 diploma angle. This needed some iMac-sketching and head-scratching (Fig. 3). For the 8 rail joints, I angled the mortise, and for the 4 leg-seat joints I angled the tenon, in the two the x and y directions (Fig. 4). In undertaking the latter I screwed up some angles, and hence experienced to violate Rule #2. A form of chain response of negative angles necessitated a remodeling of all 12 joints, so that they no extended healthy correctly and essential some wooden glue. Fortunately, generating the 1/8″ hardwood pegs was satisfying and effective!

Rule #3 was meant to leave the wood surface emotion ‘like wood’. I browse a excellent home furniture artisan reserve from the SF Library (are unable to try to remember the title) that advocated the use of a scraper to choose off thin, one shavings from the surface, leaving a superior complete to sandpaper, which makes hundreds of miniature cuts. Rather neat. A combination of blue and eco-friendly stains finished up pretty vivid.

Slow operate…but all in all incredibly satisfying!

The instruments (Fig. 5)…Japanese and Western mortise gauges. Gimlets for hand-drilling holes. Japanese noticed, chisel, and mortise chisel. Drawknife for shaping the curved seat. Arkansas stone and Japanese h2o stone for sharpening. Scraper. Mallet. Mix sq.. Old airplane that didn’t get the job done so great. Band clamp.

Instrument sources and facts:
Alameda Antique Faire
Japan Woodworker (Alameda)
Hida Software (Berkeley)
Cliff’s Wide range (San Francisco)
Publications and Bookshelves [stains and inspiration] (San Francisco)
Robert Larson Hand Equipment (San Francisco)
“Japanese Woodworking Resources” by Toshio Odate
“Hand Equipment” and “Planes and Chisels” from the “Fine Woodworking on…” Sequence
“Woodworking” by Jackson, Day, and Jennings
“House Building AND WOODWORKING IN COLONIAL The usa” by C KEITH WILBUR

Posted by snake oil on 2009-12-15 09:34:41

Tagged: , woodworking , wooden , hand instruments , jeff drawing

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