Gary Barn Door Tracker

A key part of the assembly is the drive nut which couples the large gear to the threaded rod.

Gary barn door tracker. Shoot stars planets and other nebulae with a camera that is. Modified versions of the tracker were published in the magazine s february 1988 and june 2007 editions. To accomplish this the camera can be attached to a simple device called a barn door tracker which keeps the camera pointed at the stars as they appear to move. But it will relate to the drive rod s threads per inch and the rpm of the motor driven gear attached to the drive nut.

No arduino no stepper motors no gears just a simple motor turning a threaded rod this barn door tracker rotates your camera at the exact same rate as the rotation of our planet a requirement for taking long exposure photos. A straight drive screw turned at a constant rate won t produce a constant angular motion. His plans were first published in sky telescope magazine in april 1975. Gary seronik s analog barn door tracker but there s a catch.

I was inspired to build a barn door tracker by an article in telescope making magazine by gary seronik. Get it as soon as fri sep 18. Easelife 12 ft double door sliding barn door hardware kit heavy duty ultra hard sturdy easy install slide smoothly quietly fit double 36 wide door 12ft track double door kit 4 7 out of 5 stars 650. I like the 1 rpm drive rate since it requires just over a 7 inch bolt curvature.

Free shipping by amazon. A barn door tracker is a camera attachment camera mount used to capture long exposures of night sky images. The barn door tracker was created by george haig. It is a simple but effective way of eliminating the star trail effect of night sky photography without expensive equipment.

The tracking action of the barn door mount is achieved by lifting the upper board at the correct rate by means of a motor driving a nut on a threaded rod. It s called the tangent error and here s how some of our favorite diy barn door trackers solved it.