Eye-controlled chess

I started making a plotter with and old printer, arduino UNO, h-bridge drivers l293d and a lot of imagination :P, but by the time i wanted to do something bigger and with a touch of innovation.

Then i decided to integrate eye-tracking with chess game, for people with mobility disability. I wanted to make the most real as possible, so i needed a chess table, pieces, the eye tracker and some way to move the pieces without the hands. When this idea come into my mind i thought of using that plotter for moving the pieces, so i started to improve that system and the project has begun.

I also have a writing of all the steps for building it in pdf in the schematic section, but in spanish :/, if it is required i can translate it.

It is my first approach to this site, so i will appreciate your understanding, very much thanks.

PS: Sorry for my english.