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Ben ©: Marking the centre of the cap
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Ben ©: Circle cutter
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Ben ©: Hole to locate circle cutter
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Ben ©: Drill for hole
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Ben ©: clear plastc on inside of cap
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Ben ©: double sided tape
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Ben ©: 9mm pinhole as finished, dust proof.
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Ben ©: Tinfoil with black marker before hole was made.
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Ben ©: The finished pinhole.
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Ben ©: Black plastic tape to finish
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Ben ©: Pinhole
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Ben ©: Pinhole
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Ben ©: Pinhole
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Ben ©: Pinhole
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Ben ©: Pinhole
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Ben ©: Pinhole
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Ben ©: Pinhole
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Ben ©: Pinhole