An Introduction to the Usage of Lu Banchi in Lu Banchi

1, Lu Banchi, whose full name is "Luban building ruler", is a measuring tool used in building houses, similar to the square ruler used by craftsmen today. Lu Banchi, about 42.9 cm long, is said to have been written by Lu Gongyun class in the Spring and Autumn Period. Later, it was added to the geomantic circle to measure the good and bad luck of houses and houses, 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.

2. The use of Lu Banchi should be coordinated with the building ruler. "A single door is two feet eight inches and eight whites, and a general's ruler is lucky" listed in "Lu Ban Jing" means that the length of a single door made of building ruler is two feet eight whites, so we use Lu Banchi to measure it again. We use Lu half a foot and a foot to row down, and the width of this door just falls on the last word "Ji" on Lu half a foot and two feet. Therefore,