While first IONs are being assembled, I have been making development mother board for ION. The development board has only place for one axis drive but it has handy ways of toggling input states and monitoring outputs from LEDs or through measurement hook points.

Single axis development motherboard for Ion (work in progress)

The final design of mother boards will have more finished look, better connector placements and more axis.

I wish happy Easter weekend for all of our readers! :)