It’s taken far longer than I wanted, but I am finally looking at a finished prototype for theAudrey Braille Display. Made of 3mm Acrylic laser-cut pieces (via the Victoria Makerspace laser cutter), it uses two stepper motors, connects to an Arduino (and LadyAda Motor Driver board), and displays 5 characters.
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Thanks for pointing this project out. Forwarded it to people involved in the braille display design community who would not have known about it otherwise. (Been working for a company since 2006 on a commercial display design…)