Domino's Pizza Box Airplane $35
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I didn't add any lubrication, but I'm sure a little vaseline wouldn't hurt.
Unfortunately not, that box was built by a friend of mine but has since been retired in favor of a digital (Arduino-based) solution that can control different brands of projectors.I'm sure you can find a five-throw switch somewhere like Element14 or AliExpress.Good luck :)
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