Because the building in Ming and Qing Dynasties is 32 cm long, Lu Banchi is 46.08 cm long, and Lu Banchi is 5.76 cm per inch. 1 foot = 1 inch, 1 inch = 10 minute (1 foot =33.33 cm,1inch =3.333 cm).
You can divide a foot into eight inches, with a total length of 46.08 cm and an inch of 5.76 cm. One inch for wealth, two inches for illness, three inches for separation, four inches for righteousness, five inches for officials, six inches for robbery, seven inches for harm, and eight inches for foundation, in this order.
Extended data:
According to legend, Lu Banchi was written by a public school in Lu during the Spring and Autumn Period. Later, eight characters were added to the geomantic circle to measure the good or bad of the house, which was called "door plan".
Also known as "square", it is mainly used to check whether the planed plates, purlins and structures are vertical and whether the edges are at right angles to each other.
Soon after, Lubanchi appeared, Ding Lan ruler was integrated, and then inches and centimeters were integrated. It is an important tool for measurement and calibration.
Because of its special function, it is most widely displayed in geomantic culture and architectural culture.
Lu Ban invented many things. According to many ancient books, he invented many woodworking tools used by carpenters.
Like a carpenter's ruler, it's called Lu Banchi. Another example is Mo Dou, umbrella, saw, planer and drill. Legends are all invented by Lu Ban.
The invention of these woodworking tools liberated the craftsmen at that time from the original heavy labor, and the labor efficiency was doubled, and the civil technology took on a brand-new look.
It contains the original knowledge of physics.
References:
Baidu Encyclopedia-Lu Banchi