How to use a compass to determine the sitting direction of a house

First, hold the outer plate with both hands and place it between the chest and abdomen, keeping it in a horizontal position. Then, use your back as "sitting" and facing as "facing", and stand firm. At this time, the crosshairs on the compass should coincide with the front, back, left, and right directions of the house.

After fixing the position of the crosshair, use the thumbs of both hands to rotate the inner plate. When the inner disk rotates, the Tianchi will also rotate with it. Rotate the inner disk until the magnetic needle comes to a standstill, overlapping with the red line in Tianchi. Note that the end with a small hole on the magnetic needle must overlap with the two small red dots on the red line and cannot be the opposite.

At this time, the pointer showing the sitting side will intersect each layer of the inner disk. On the first floor where the twenty-four mountains are engraved, the "mountain" on the Xiangfang is the Xiangfang of the residence; the "mountain" on the Zifang is the Xiangfang of the residence. For example, Xiangshan is Jia, and sitting on the mountain is Geng. We know that the direction of residence is sitting on Jia Xianggeng.

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