the ocilating component from a fan sounds promising....I think you could use a string and pulley system to move light side to side...probably wont move as far as a lightrail(6' of horizontal movement)but sounds promising...
Have you ever noticed the trich production is highest facing the light??? I've seen light movers give a higher yield and potency in others grows...if you are groing for headstash, a light mover is a great addition...I am gonna try the fan idea in my small area...I think I'll hook a n eyelet to each side and a string to my fan, then ocilate it and see how much movement I can get...
dude named mattso i think used a fan. he took fan off and light moves left to right like a circulating fan. but thats not really moving it much.
Thanks for this idea. I rigged this up to move two mars hydros beside each other. I used a graphite shaft cut off a golf club to minimize weight and to increase the distance achieved by the motion. A piece of string on each end, one for each light and all hung upside down. Niice