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Why does Motion Study report a negative value(s) for reflected inertia?

Question asked by Aaron Frazee on Apr 8, 2014
Latest reply on Apr 9, 2014 by Jared Conway

I recently used the Reflected Load Inertia plot for the first time on some 2D Delta robot arm models to determine the reflected inertia to the servo motors. I was surprised to see the Results show positive & negative values. How are negative inertia values possible?

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