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I have a square plate (8x8 cm) that I want to turn it 90 degrees clockwise and after 90 degrees counterclockwise as you can see in the picture. Each rotate will happened after a second delay and fast (don't know exactly the speed but fast).

I know how to control gears etc but I want your help about the simplest implementation. I thought about solenoid or stepper motor or motor with a gear like that https://www.youtube.com/watch?v=fmA9Vnu33FY enter image description here

What do you suggest?

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  • $\begingroup$ Check out drill driven valve lapping tools. $\endgroup$
    – Solar Mike
    Dec 6, 2021 at 19:16
  • $\begingroup$ A geneva wheel driven by an electric motor that hits limit switches wired to an H-bridge to revers direction. $\endgroup$
    – DKNguyen
    Dec 6, 2021 at 19:40

1 Answer 1

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Any crank system attached to a flywheel will do.

Remember the old steam locomotives? Revers of that.

The wheel turns the handle back and forth. The handle can be connected to your square at a point 135 degrees from a hinge and will go back and forth 90 degrees. the reciprocal play then is 90 degrees

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