To the metal lathe we go....
In investigating the light rod movement, it seems to be the consensus of the group that the light rods to not move in a 'wave' motion. they have a 'sequence' to them that skips certain rods, moving them after the first set. So, with that in mind I've designed an inner raced cam that I can mill separately. This inner race is removable at this point and sets into a turned slot. I'll probably use a small slot and screw threw the top of the cam so that I can adjust the timing of the inner race to the outer.
2 hrs, 1 hr to design it, 1 hr to turn it.