Master Feng Shui always carries a compass. What are they used for?

Compass is the main tool for Feng Shui master to find dragons and caves, remove sand and absorb water, and arrange vertically. The quality of tools is related to the accuracy of measurement and directly affects the accuracy of vertical lofting. Therefore, feng shui masters are very picky about compasses. To do geomantic omen well, you must know what kind of compass can be used in practice. The compass consists of three parts: the seabed, the inner disk and the outer disk. The quality of the three parts is closely related to the measurement accuracy of the compass.

Submarine: 1. The circular box on the seabed should be a standard cylinder, and the positioning reticle on the seabed should be orthogonal, that is, at a 90-degree angle. 2. The casing shall be fixed at the intersection of submarine crosshairs and perpendicular to the seabed. The tip of the thimble should not be damaged. If the needle tip is damaged, the rotation of the magnetic needle will be inflexible. 3, magnetic needle must be straight, have enough magnetism, the weight of both ends should be consistent. 4. It's best to make the seabed cover with glass. Using plexiglass or plastic as the cover is easy to generate static electricity, which has an adsorption effect on the magnetic needle and will affect the measurement accuracy. 5. When the glass cover is covered, turn the seabed upside down, and the magnetic needle should not fall off. When the seabed is put into the inner plate, special attention should be paid to the alignment between the north of the seabed line and the center of the inner plate sub-mountain.

Inner disk: 1. The content of each circle on the inner disk is the main part of the geomantic compass, which requires the disk surface to be flat, accurate and clear. 2. Meridians of the twenty-four mountains of the site should coincide with 360 degrees, 180 degrees, 90 degrees and 270 degrees on Sunday respectively, and other disks should be set according to the standard of compass, and each disk should be in its place. 3. The inner and outer gardens of the inner plate must be standard. After the outer disk is put in, the gap between the inner disk and the outer disk should be kept within a suitable range and the width should be appropriate. The gap is too small, the rotation is not flexible, and the gap is too large, which affects the measurement accuracy. 4, the inner ring should be slightly tight, so that the seabed is not loose. The center of the inner disk should be concentric with the seabed.

Outer disk: 1. The outer disk must be a standard square, and its four sides cannot be bent or skewed. The center of the circular groove for placing the inner disk should be in the geometric center of the outer disk. 2. The disk surface should be smooth. 3. Tianxin 10 is the indicator line for reading the contents of each layer of the inner disk, and the four threading holes must be located at the center points of the four sides of the outer disk respectively. 4. For a compass with leveling bubbles, when the bubbles of both leveling bubbles are in the center, the magnetic needle on the seabed should be parallel to the disk surface. The quality of compasses sold in the market varies from place to place. When buying a compass, you can choose according to the requirements detailed above.