The public makes the trunk so that the height of the wheel, the width of the trunk, and the length of the scale are the same, which is called the three names. I divide the width of the trunk into three equal parts, and removing one equal division is the length of the trunk. The length of the trunk is divided into 3 equal parts, 1 equal part in front as the length of the short side of the cart, and 2 equal parts in the back as the length of the wheel and the length of the wood, and the cart is baked with fire.

Half of the width of the trunk is used as the scale of the height of the wheel, and half of the length of the trunk is used as the size of the height of the wheel. I divide the width of the trunk into six equal parts, and the length of one equal is the circumference of the trunk. Divide the girth of the wood into 3 equal parts, and remove 1 equal part to get the girth of the wood. Divide the girth of the wood into 3 equal parts, and remove 1 equal part to be the girth of the wood. Divide the girth of the wood into 3 equal parts, and remove 1 equal part to get the girth of the 轵 (zhǐ) wood.

Divide the girth of the tree into 3 equal parts, and remove 1 equal part to get the girth of the tree. All the timber used on the trunk, the round timber needs to be round to meet the regulations, the square timber needs to meet the regulations, the standing timber needs to be straight and the vertical line needs to conform to the vertical line, the horizontal timber is as flat as horizontal, the upright timber is as if it grows out of the ground, and the vertical and horizontal intersecting timber is like attached as a whole. If the coarse wood is attached to the fine wood, the fine wood will break, and the fine wood will be broken when pulled hard, and the box of the pallet car should be retracted inward, and the box of the car will be stretched outward.

輈 (zhōu) people are responsible for making chariots, which are two straight logs for driving cattle at the front of a cart. There are 3 heights for the wheels and 3 requirements for the axles. The wheel of a horse bred by the state is 4 feet 7 inches from the bottom of the trunk, the wheel of a horse used for hunting is 4 feet from the bottom of the trunk, and the wheel of a horse that cannot run fast is 3 feet 3 inches from the bottom of the trunk.

There are three requirements for making axles: one is to be smooth and beautiful, the second is to be durable, and the third is to be conducive to rotation. The length of the wheels in front of the front rail is 10 feet, and the length of the whip is half the length of it. For all the wood that bears gravity, and the vanadium (fán) wood that bears the gravity of the trunk, divide the length of the wheel into 10 equal parts, and use 1 equal part as the circumference of the vanadium wood; The balance wood at the stress between the two yokes shall divide its length into 5 equal parts, and use 1 equal division as its circumference. If the girth is less than this length, it is called incompetent.

I divide the width between the left and right two logs into five equal parts, and use one equal division as the circumference of the shaft. Divide the length of the wheel into 10 equal parts, and use 1 equal division as the circumference of part of the wheel. Divide the circumference of the part of the wheel between the two rabbits into 3 equal parts, and remove 1 equal part is the circumference of the wheel neck. Divide the circumference of the wheel neck into 5 equal parts, and remove 1 equal part to get the circumference of the heel of the wheel.

Whenever the wood is roasted with fire, it should follow the grain of the wood, and the curved arc should not be too deep. Now the wheels of the big car are low, and it is difficult to go uphill, even if you can climb up, it is easy to cause overturning. There is no other reason for this, but because the wheels are too straight and not bent.

Therefore, when the cart walks on flat ground, the wheel balance is more suitable for load, and when it comes to the uphill slope, if the wheel is not pressed downward, the car will definitely strangle the cow's neck. There is no other reason for this, but because the wheels are too straight and not bent.

Therefore, when the cart goes uphill, you have to work harder to climb up; When going downhill, if you don't pull the back of the cart, the leather belt of the cow will definitely strangle the buttocks of the cow. There is no other reason for this, but because the wheels are too straight and not bent.

Therefore, the wheels must be very tough, and if the curve of the wheels is too deep, it will break, and if it is too shallow, it will lean on and grind the horse's thighs. The bending arc of the wheel is moderate, it will make the driving of the car convenient and stable, convenient and stable will be durable, the curve of the wheel will be harmonious, and the passenger will be stable.

The wheel should have a certain arc so that it is not easy to break, and it should be bent along the texture of the wheel wood, so as not to break the texture. When you want to make the car move forward, it is exactly the same as the horse wants to move forward, and when you want to make the car go back, you can go back and go back according to the will of the person, and you can go forward and backward as you like, which is very convenient. Running all day long, His Holiness on the left side of the car will not get tired; After traveling thousands of miles, the horse will not be afraid of the horse's hooves cracking and injury; Ride a horse all year round, and the reward under your clothes will not be worn out: this is because of the straight and harmonious curvature of the chariot.

The harmony of the wheels helps the horse to move forward with force, and even if the horsepower is exhausted and wants to stop, the wheels can also push the horse forward several steps. The annular texture of the lacquer on the good carriage is in front of the rabbit, less than about 7 inches in front of the front rail. The ring texture of the front vanadium can maintain the paint decoration for a long time without being worn out by the chassis floor, and it can be called a national wheel.

The crossbars around the bottom of the trunk are square to symbolize the ground; The lid is round to symbolize the sky. There are 30 straight bars connecting the rim (wǎng) and the hub (gǔ) to symbolize the sun and the moon. There are 28 bows to symbolize the 28 constellations. The dragon (zhān) is adorned with 9 dangling ornaments to symbolize the fire in the 12 star stages. The bird is decorated with 7 hanging ornaments to symbolize the quail fire in the 12 star stages. The bear flag is decorated with 6 overhanging ornaments to symbolize the 6 stars of Betelgeuse, one of the 28 Nakshatras. The tortoise (liú) is decorated with 4 hanging ornaments to symbolize the camp room, which is one of the 28 nights. The arc is painted with a vain star to symbolize an arc star shaped like a bow and an arrow.

(3) Tsukiji/Tamato

Zhushi and Yeshi are both craftsmen who control metals, Zhushi is responsible for Shangqi, Yeshi is responsible for Xiaqi, and more than one-third of the tin content in the alloy is Xiaqi, and no more than one-third is Shangqi. The 凫 (fú) clan made musical instruments, the chestnut clan made measuring instruments, the dan style made farm tools, and the peach clan made long-bladed weapons. There are 6 proportions of copper-tin alloy: the alloy is divided into 6 equal parts, and the tin content accounts for one-sixth, which is called Zhongding Zhiqi; The alloy is divided into 5 equal parts, and the content of tin accounts for one-fifth, which is called the Qi of the axe; The alloy is divided into 4 equal parts, and the content of tin accounts for a quarter, which is called the Qi of the Halberd; Divide the alloy into three equal parts, and tin accounts for one-third, which is called the Qi of the Great Blade; Divide the alloy into five equal parts, and tin accounts for two-fifths, which is called cutting and killing arrows; Half of copper and tin are called.