Re: Discussion about Blind Accessibility - the next steps?
IIRC, Magurp is sighted. I'm not.
Re: electromagnets, the trouble with this solution seems to be getting a narrow enough focus for the field to affect individual pins without interfering with the others. Maybe if it's set up in, say, two layers, in sort of a checkerboard pattern, to optimize the positioning of the magnets relative to their associated dots? That'd make it thicker and somewhat more costly to produce, but if it works for cheaper than the intricate maze of Piezoelectric levers that seemed to be the mainstream solution since last I checked, I guess I'd be OK with it being a little thicker than the slimmer models on the market.
Another way to reduce the leaky field problem would be to have the pins themselves come in two or more types, but that ups the complexity and probably the cost.
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