JACKIE JUDD:

Shubham's one-person focus group is Henry Wedler, blind since birth and a doctoral student in chemistry at the University of California, Davis. Wedler learned about the LEGO printer from a local newspaper story and then got in touch.

HENRY WEDLER, University of California, Davis: I explained to him what we really need is some way for blind people to be able to produce braille, not necessarily quickly, but sort of on the go, just like sighted people can produce print on a printer.

That sort of printer, that sort of technology has never existed for me or any other blind person that reads braille.