On 3/25/2014 3:50 AM, Matthew DeBlock wrote: > <snip> > > The mechanics are likely the prime factor, as Braille popularized itself well before computers and digital printing were common. I imagine factoring in today's technology there may be "room for improvement". We have all seen embossed business cards, and the embossing is as simple as drawing a graphics and saying "make the blue part embossed". It is cheap and easy nowadays. The common embossing on business cards might not provide enough definition of depth to compete, but i imagine the principle is easy enough, and hardware specialized enough that there is perhaps room for considering alternative methods now. > Back in the day, both Braille and Moon systems were made as metal printing type, then embossed through the back of thick paper to create books and periodicals. --Ph. D.