As far as curvature, maybe a little more would be advantageous. In terms of
width, I don't understand how one much wider than my finger could be
helpful, but then, I would prefer to yield to your judgment, Charles.
GIFT (God is forever true),
Carolyn
----- Original Message -----
From: "C. Pond" <cpond@xxxxxxxxx>
To: "optacon list" <optacon-l@xxxxxxxxxxxxx>
Sent: Friday, May 01, 2015 1:02 PM
Subject: [optacon-l] finger plate
Are people satisifed with the radius of curvature of the present finger
plate, not that we have anything with which to compare? Would people
prefer a very slightly wider finger plate, or perhaps one with slightly
deeper concaveved surface where the reading finger goes, or one with a
different radius of curvature?
I’m way behind in my e-mails, reinoud, and in everything, but yes to
answer at least one of your questions for now, I do have several displays.
I’m now going for finer and finer resolution and the fine tuning of what
is already good, but I feel could be even better. For just one instance,
the waveform simply propagates through the resonating coils, and this
works just fine; the user wouldn’t know the difference nor care.
However, I believe I can improve the tactuators’ design even more so and
reduce power of over 300-plus actuators (I call them tactuators) per
display by optimizing the phase relationship between the coils, rather
than simply letting the waveform propagate according to its native
parameters.
Just one of another next step is to have machined (and that is being done)
or to have modified special side cutters to properly trim the tactile pins
according to the radius of curvature of the finger plate. The design of a
finger plate is not trivial. It has att least 8 clear functions for a
well-designed optacon, so until something automated is done,
specially-shaped cutters will serve better than standard albeit tiny side
cutters.
So what do people think about the radius of curvature of our present
finger plates where our reading finger goes?
Thank you for feedback,
Charles
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