Motorized Barn Door Mount

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

Motorized barn door mount.

Singer controls division model 414 349 20 115v 60 hz 3w 1 rpm cw. The motor was sourced from american science and surplus for about 2 50 and is a 1 rpm ac motor. There are several designs out there the one i made is called a curved sector drive because the threaded rod it uses is curved. I am not aware of a stock number but the motor is marked as follows.

Great for vehicular sliding door applications the edison will civilize your sliding door operation like never before. You mount your camera on the door then aim the hinge straight at the north star polaris. Don t get out of your car. What follows are instructions for building a simple motorized barn door photographic system for taking pictures of the night time sky.

The nyx tracker is a motorized barn door tracker used for astrophotography. Don t get off of your tractor. You can use a straight tangent drive but the drive screw should be. Barn door photography systems have been around for years.

First cut the 500mm length in half and mount the hinge. Make sure everything is square and moves freely clap the 2 hinged boards together and shout action a few times like they do when making movies if it makes a nice clack sound it should work well for a star tracker now measure 228 55mm from the center of the hinge pin down the middle of the board and mark the drive rod holes do this on. 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. A barn door tracker also known as a haig or scotch mount is a device used to cancel out the diurnal motion of the earth for the observation or photography of astronomical objects it is a simple alternative to attaching a camera to a motorized equatorial mount.

You can buy fancy motorized equatorial mounts for telescopes and cameras but it s way cheaper and more satisfying to build your own simple barn door tracking mount using a long bolt or threaded rod as a drive screw. Let the edison sliding opener open your barn doors with ease. Inexpensive and budget friendly it is useful for people interested in astrophotography but not ready to spend on expensive equipment. A manuscript entitled affordable astrophotography with a motorized barn door is available for download.

Edison sliding openers aos for garages doors or pole barns.