Freds (unlabled) Timelapase Machine, inspired by Phil Hart http://philhart.smugmug.com/ who also now owns a Timelapse machine.
A programable 2 axis Stepper motor controller and exposure timer that with a suitable mount or trolley , can take time lapse sequences in a move-expose-move fashion with a DSLR camera.
6 programs each with 90 steps with up 400 degrees movement, up to 17 hrs and up to 9999 exposures per step can be programed.
Each step can be programed with a different speed and excelleration profile.
The result is a sequence of exposures, typically over 500 taken over a few hours that are converted to a short timelapse video.