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A comment on Affordable Wheel Based Refreshable Braille Display.

Re:Affordable Wheel Based Refreshable Braille Display by paulftw on Saturday March 16, 2024 @06:05AM (#39724596)
why couldn’t it be done on an off-the-shelf 28-byj-48 stepper?

The reason is probably explained somewhere in the article, I just can’t find where

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Re:Affordable Wheel Based Refreshable Braille Display by Joel_Mckay on Saturday March 16, 2024 @09:14AM (#39725605)
The 28-byj-48 were designed to oscillate air conditioner vents, and as such have an internal slip-clutch mechanism to add to the abysmal backlash of their gear box.

There is also the weight and energy consumption to consider.

People may be better off gluing a small bead to one side of a flip dot display. =)

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