Lu Banchi was invented by Lu Ban, which can be divided into Lu Banchi (plus ruler), Lu Banchi (minus ruler), Zhou Mi, secretary and so on. Mainly used for the geomantic omen of Yin and Yang family.
Originally, it was only used by Yin and Yang Feng Shui masters to measure the construction of Yin and Yang rooms. Later, it developed into daily necessities such as doors, stoves and beds, which can be based on the good or bad luck of Lubanchi. So people later called it "Feng Shui ruler".
The ruler is marked with all kinds of good and bad information signs in red and black font, and now it has become an indispensable tool for building experts, architects and design experts to make all kinds of instruments and equipment, wood products and so on.
Lu half a foot message board:
The geomantic ruler is marked with all kinds of good and bad information signs. In the future, whether building a house, opening a door, building a grave, making or buying furniture, setting a table, loading a bed, etc., we must take good or ill luck from the ruler.
The upper and lower lines of Lu Banchi are measured in Lu Banchi and cm respectively, and the upper line in the middle is dedicated to measuring houses. The related scales are: "wealth, illness, divorce, righteousness, official, robbery, harm and capital", with four items in each line, each of which is a sign.
There are words like "graduation, wealth, happiness and good luck". When building houses or measuring other houses, it can bring good luck to use red auspicious signs as the unit of length.