When attaching the U-frequency vibrator to the main unit, the screw hole was misaligned. The U-frequency wave does not go in far enough for the alignment hole in step D. I re-drilled to make it work. I don't think this thing can withstand a strong gust of wind. The reflective panels are like little sails and are unlikely to withstand winds in excess of 25mph. Must be in a protected area, not in an open field. It wouldn't hurt to test it in a wind tunnel from different angles to see the effects.
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