The problem with the feng shui compass, yes, that's right, is the feng shui compass.

The geomantic compass used to be a teak base made in Fujian, so it is better to use without a base. Teak is the wood with the smallest deformation, and the precision of careful drawing is extremely high, plus the teachers hand-grading. At present, the paper printed with scales is based on fiberboard, which is easy to deform, inaccurate and durable. In addition, it is not practical to add a pedestal in some places, because according to the rules, the master needs to prepare a gift red envelope and a bowl of rice, and set a compass for the master Geng to level with the teacher; On the contrary, it is difficult for a compass with a bottom to move horizontally above the rice bowl to adjust the pointer of Tianchi. Of course, if you walk around with it in your hand, the rough test is still relatively easy to use. As for the geomantic compass made of diamonds, I have never seen it, so I dare not talk nonsense.