Hi,
JPANHALT:
I've been reading up a bit on these "memory wires",
and you are correct, they can be made to 'bend and un-bend" repeatedly
by heating and cooling.
And yes, they are used as actuators in some model aircraft.
So they could possibly be used in a similar way to operate a wooden
pixel as part of an array.
BLUEROOMELECTRONICS:
Yes, it would be a bit slow but if the movement required was short then
it could be fast enough to produce interesting results.
As to the intersection ...
I'm curious what sort of mechanical device would move
something at a X-Y intersection of muscle wire.
I don't think that jpanhalt meant that the X and Y wiring would be "muscle wire",
that would be ordinary wire, the "muscle wire" would be fed from the intersections.
The wooden 'pixels' would just be pivoted on pins, and they would take very little
effort to change angle, the actuator could be positioned so that a small
movement caused a significant change of angle of the 'pixel'.
A lot of trouble to make an array of even 100 X 100, but i would think possible.
Regards, John