Brian Grabski’s newest invention is a dolly designed to carry a camera over a curved track in order to make time-lapse videos. I was drooling when I first saw this machine and only grew more excited when I learned he had a write-up and video explaining the build. The bulk of the machine is made of wood. It uses skateboard wheels on metal pipes and is driven by a servo motor connected to an electronic speed controller.
This might be much cheaper than buying professional equipment but I suspect Grabski had to spend some money putting this together. That large gear looks suspiciously like the new gearmotor gearbox sold through ServoCity for $59.99. Throw in the precision digital speed control ($99.99) and manual driver ($49.99) and the project starts getting expensive. Is it too late to put those things on my Chirstmas wish list? More photos, another video, and some cool projects on Grabski’s website.