A while back we featured a nifty way to slide your camera while taking time lapse movies. At the core of that system there was a BBQ rotisserie motor. It is a very common item, but hell to carry on location.
The idea is simple enough, pull a fishing line from the “slider head” to a slow gear motor to the slider head and you can pull the head towards you and create motion.
The smart part, Joakim uses a 12v DC/DC adapter with voltage control to make the motor go faster or slower. Clever.
Power? A small 12V lead acid battery. Smart, and super portable.
I wonder how long it would take the big guns to come up with a similarly cheap and effective alternative.
[thanks for the twitter shout, Joakim]