Picked up a 5 position beam rail from ebay recently, just got it running off my controller. Picked up a Driver card from DZ, it was common positive on input the controller was common ground, so I ran the second head beamer control outputs through 7404 to invert them. This was the test to be sure both rails would operate fine. The short rail will have scanners feed out the end, the longer rail will have 2 or 3 position Lumia.
One turret will be dedicated for a poly20 grating also.
Ahh yet so much work before SELEM, not sure this one will get done.
Both rails will be RGB.