After about 450 BC, he came to Chu from Shandong to help Chu make weapons. He once created a ladder to attack the state of Song. Mozi came all the way from Lu to Guoyong, Chu, and argued with Lu Ban and the king of Chu, urging him not to attack Song again.
Hand tools used by carpenters, such as drills, planers, shovels, rulers and Mo Dou, are said to have been invented by Lu Ban. And the invention of every tool is inspired by Luban's production practice, after repeated research and experiments.
Extended data:
Mo Dou is a tool used by carpenters to play with threads, which was invented by Lu Ban. This tool uses a bucket to store ink. One end of the thread passes through the ink hole for dyeing. At the end of the dyed string is a small wooden hook, which is called "Ban Mu" and was invented by Lu Ban's mother. The plank is usually about an inch above the ground. After fixing, the dyed rope will bounce to the ground, which is the standard of horizontal line and straight line in the construction site.
Or you can fix the plank on a high place and hang it by Mo Dou. The dyed rope will bounce to the wall with the weight of Mo Dou, which is the straight line standard of the facade. After the stonemason, the master used a bucket line to determine the shape of the collected stones, and then knocked off the unnecessary parts with other tools to make stones such as squares and feldspar with the required shape.