Hexagons are cool but a bit of a pain because their spacing involves a root 3, a non rational number. This means you can’t lay it out on strip board, it needs a special PCB. That’s why I built my CNC project mainly to do this project.
The hexagonal spacing allows different sorts of sequencers to be built with sequencing tracks going off at different repeating rates. I have only just begun to explore the possibilities that this opens up. It also allows a more comprehensive way of generating a keyboard for music.
Mike will be showing off the Hexome at the UK Maker Faire on March 13th.