Showing posts with label japan. Show all posts
Showing posts with label japan. Show all posts

Tuesday, August 10, 2010

Stability and Accuracy

I had just finished reading a book about Japanese carpentry and roof construction when I took a closer look at a new building being built in Waterloo. The book is called "The Genius of Japanese Carpentry", and details the reconstruction of a Japanese shrine from the ground up. It focuses on one building and shows the detail and extreme accuracy involved in building a roof structure that will last for centuries.

The curve of the above roof is approximated by 5 pieces of lumber, they look like 2x10's from the ground, that for some reason shocks me. The 5 pieces aren't even evenly spaced, there are three 12' pieces followed by a short 4' piece then another 12'er...I'm pretty sure that wouldn't fly with the master carpenter in Japan...

..and in other exciting news...dimensional instability in wood is a BIG deal! A lovely exaggeration of this was found in my garage, where two identical pieces of wood do a nice job of showing what happens when one is saturated with water and the other isn't. Just another reminder to pay attention to grain direction and dimensional change!


Friday, March 19, 2010

Kanna

My first kanna arrived today all the way from Japan:


I don't know what this says:

...but the dai is a nice quarter sawn piece of oak...


...this says the same thing as the box, which I'm guessing is "katsusaburo", the name of the plane..


...overall a neat thing, but due to some humidity issues (or lack thereof) I'm still waiting to get to use it. You see the blade is stuck and I can't get it out to make the modifications needed to the dai that are required for a new kanna. I think that traveling from humid Japan to the dry Canadian winter of Ontario has caused the block to dry out and shrink quite a bit and lock the blade in place.


Thursday, August 13, 2009

If I had a hammer...

Some days you just feel like hitting things with a really big hammer. My sander and jointer both just bit the dust this week and that meant I wasn't too happy shelling out for parts and wasting my day fixing things. Because of this I built a big Japanese-esque mallet today. The head is quartered oak, with an oak and padauk handle. I got to use my spoke shave to shape the handle, which was really a nice thing to do.


Sometimes I wonder how my personal interpretation of Japanese woodworking relates to the real thing. I'm not too worried about it, I mean I just like building things and they don't have to fit into any tradition or style.



Thursday, April 2, 2009

Respect

I was having a talk the other day with this old Japanese guy that I know, Junji, and it was kind of interesting. I'm a linguistic nut, so I was asking how to pronounce some of the names of the saws, planes, and chisels I use. When I asked him about the word shokunin (which apparently I was pronouncing like an Italian) he said "I like this word shokunin. It is a good word". As a general rule I'd say I like people who have an opinion about the quality of a word. We talked a bit more about the shokunin and shoji, the famous Japanese paper screens and doors. As a westerner you look at the delicate pieces of wood covered in translucent paper and think, "Man, those must be breaking all time...with kids poking holes in them...what a pain those must be". The first thing Junji says is that "you must respect the door"...I mean, respect for a door...how foreign a concept is that! You know though, I like this idea of respecting a door, and I like the idea of building something in such a way that it requires and deserves your respect. It almost forces you to shift your viewpoint, because if you don't you will end up simply destroying the objects in your world. Kind of like a philosophy lesson in a window screen...


This is a Japanese marking knife. The thing that's so special about it is that it's made from two pieces of steel that are laminated together, one hard, and one soft. The cutting edge is made from the hard steel and allows you to sharpen it until it's like a rasor. The soft steel also has its own purpose, providing strength to support the brittle hard steel. On their own neither would make a good blade, but together this technique produces some of the finest cutting tools available.

Apparently after the Samurai were banned in Japan all the top swordmakers were going to be put out of business, but instead of closing up shop they turned to making plane blades and knives for woodworkers. The knowledge gained over a lifetime of forging is usually passed on from father to son in the blade making world, with the family's secrets and special techniques learned through decades of experience handed down. The shokunin respects the skill of the blade makers by respecting their tools and using them to their full potential.

One day I hope to consider myself a shokunin, but it seems I still have a lot to learn. When my new marking knife arrived in the mail yesterday I immediately set about wrapping the blade with cotton twine to make a handle. Japanese tools seem to require a bit of care and attention, you need to set them up first to make them work the best way that they can for you. While wrapping the knife I got in a rush, stopped being smart, and started being stupid. Instead of clamping the knife down I started yanking on the string with one hand while holding the blade in the other...yup, it slips and I end up sitting in the hospital for 6 hours waiting to get four stitches in my knuckle...

Next time I think I'm going to show that knife a little more respect...

Wednesday, March 25, 2009

Odate


I was recently told that this book by Toshio Odate was a good one, so I picked it up and I have to agree. There’s something about the way that Odate writes that displays his passion and ethics without being boastful or over the top. This book is a narrative about the shokunin (a master craftsman and artisan) and their tools and workspace. One of the most interesting things I’ve found is how Odate emphasizes that a shokunin is not just a craftsman, but one with a social consciousness and a certain attitude about their work. Respect and honour seem to be very important parts of everyday life, be it in the sharpening of a blade, or the making of a door. I used to work at a window and door manufacturer in one of my engineering jobs, and looking back now there was definitely something absent in the way that they made doors. When you stamp things out by the hundred each day its very hard for someone to have some kind of moral basis upon which to base their daily efforts.

Okay, before I get too long winded...

I’m definitely a person that learns by doing, and usually that means I screw up the first couple of things I do...well maybe more than a couple. Here’s my take on a simple marking gauge...just a couple wedges really and an old exacto blade, but I’m excited to get to use it.


I’ve started the process of making a lot of my own tools, which will in turn allow me to make better tools, that will then allow me to make even better tools. It’s a neat process to be caught up in.