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Robot arm help? Answered

A while back i saw an instructable that was a wooden robot arm it had a main arm and a second smaller one. the smaller one had a handle that allowed you to move it. you moved the smaller arm to program the larger one. anybody know what i am talking about?

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i wish i could explain it better it had a small arm that would track its movement then the larger arm performed it

That is not it but i was able to find what i was looking for https://www.instructables.com/id/Laser-guided-Ghost-Climber/
I plan on adapting this to a project of mine thank you thouhg