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Robust way to rotate an 18 inch square plate 90 degrees.
In general, what would be the most robust way to internally rotate a plate from horizontal to vertical (hinged on the bottom) that when in a vertical orientation is 18"(h) x 18"(w) x 3"(d).
We have researched cams, linkages, pulleys, acme screws, etc and are wondering what you think the most robust method of rotating a plate would be with very limited resources and no machining capabilities.
Thank you, so much for your time.
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