Magnetic Effector for Delta

This is an experimental idea where by putting the magnets within the effector rather than the arms.

The idea of magnetic delta arms is quite attractive. Excuse the pun. Rather than placing the magnets on the end of each arm, I could imagine cylindrical magnets could be placed within the ends of the effector (also shared between adjacent nubs!). This could effectively reduce the number of magnets used for the effector by a factor of 2.