Making timelapses is nice, but I found that I needed some kind of camera motion. Doing zooms and translations in software just doesn’t look good to me, so I decided to build my own battery-powered rotary motion control. It basically consists of laser-cutted plywood, an Arduino board, a record player belt and an old scanner stepper motor that has a gear attached.
There are two USB outs to attach cameras that get triggered remotely and synchronously by the Arduino and a CHDK script running on the cams. That way it is possible to do stereoscopic motion controlled timelapses too.
I put everything into a nice box with switches, jacks and a fan (for timelapsing in the sun on hot summer days – the motor driver becomes quite warm). The table only rotates a thousandth of a degree per step. Pretty precise, huh?
The cam itself is also powered by the battery, see the Canon IXUS Power Supply project.