When making a parabolic antenna, we need to make a parabola sample as shown in Figure 1. The thickness of the sample is 3mm aluminum plate. The coordinate method is used to mark the top, then the hole is removed to remove the excess material, and finally the shape is repaired. In the final repair, it is necessary to ensure that the parabolic arc surface of the repair is perpendicular to the side, but there is often a phenomenon of unevenness and joints during the repair.
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