Hi, I don't know if I can give you very precise measurements but I'll try. Braille cells are made using piezo-electric crystals. This is one of the biggest cost. These crystals change their properties when current is applied to them. These crystals are used to raise and lower pins that make up the Braille cell. Braille displays use eight dot Braille instead of six dot Braille. All of these parts have to be made with very high precission. They then have to be assembled. Unlike most electronics which have no moving parts, Braille cells have numerous moving parts. The visible part of the cell is about 3/8 of an inch wide and about 1.25 inches long. The part you don't see is about 4 inches long and stands about an inch high. These cells plug into a circuit board and then all of them are held together by some sort of rod that runs through the cells. This all takes a lot of manual labor to assemble. Tommy -----Original Message----- From: blinux-list-admin@xxxxxxxxxx [mailto:blinux-list-admin@xxxxxxxxxx]On Behalf Of Nick Nelissen Sent: Monday, July 21, 2003 9:29 PM To: blinux-list@xxxxxxxxxx Subject: Re: Papermeier Braillex ELBA note taker Could someone physically describe a Braille cell to me. How big are they? I presume they have pins or something that are raised, but by how huch and how far apart. I have worked in the small scale electronics manufacturing industry, and I'll have to agree with what has been said about the costs of small runs being high. Nick _______________________________________________ Blinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/blinux-list _______________________________________________ Blinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/blinux-list