Use a band saw.
Drill a hole in the center, Place a dowel in said hole into a board. Clamp board to table so it is 18.5"/2 (9.25") away from saw blade. Rotate the lexan with blade running. Can be done without a hole being drilled by use of adhesive, but might become unstable.
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Shooting for 600 miles of range at 65-70 mph out of a vx.
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