Double Arm Barn Door Tracker Plans

Sky telescope april 1989 p436 p441 very good.

Double arm barn door tracker plans.

Original concept by dave trott. A simple single arm barn door tracker can be made by attaching two pieces of wood together with a hinge. Construction plans for a star tracker. Nyx tracker the only inexpensive ready built barn door tracker of which i am aware is the 89 00 nyx tracker from nyx tech.

Types of barn door trackers. While this article discusses building a simple single arm version you can create some advanced versions that include electric motors and driver boards to control them. 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. There are a few different variations of a barn door tracker also known as a scotch mount or haig.

Get it as soon as thu sep 24. If you want a barn door but don t wish to build one from scratch this is your only option. A camera is mounted on the top board usually with some sort of ball joint to allow the camera to be pointed in any direction. The hinge is aligned with a celestial pole and the boards are then driven apart or together at a constant rate usually by turning a.

First cut the 500mm length in half and mount the hinge. φ θ arcsin sin θ β where θ is the angle through which the drive arm moves. The barn door mount whether single arm or double arm is a very simple inexpensive device. 4 4 out of 5 stars 155.

The nyx tracker uses a curved drive screw which eliminates the need for a double arm design. The original single arm barn door has been around for many years and was i believe first popularized by a fellow named haig back in the 1970 s. The double arm mount shown in the photograph uses a 6mm m6 threaded rod to drive it. The angle φ through which the camera arm moves is given by.

It is sometimes called the haig or scotch mount. Sky telescope february 1988 p213 p214. Accurate solutions exist when β is in the region of 2 000 to 2 186 sky and telescope apr 1989.