Type 1 Barn Door Tracker

Cut your two blocks of wood pieces into 13 x 4 pieces.

Type 1 barn door tracker.

Assembly setting up your door tracker. 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. For a type 1 and type 4 drive b is measured from the camera platform hinge point to the sliding contact point. 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.

3 5 door hinge 3 1 x 3 8 hex bolt 1 1 x 1 4 20tpi carriage bolt 2 2 x 1 4 nut 0 10 1 x 1 4 x20 t nut 0 48 gorilla glue 7 2 x 13 1x6 lumber no source here as i just bought scrap wood. The hinge you measure from depends on the drive geometry since this distance must not vary as the arms close. For a type 2 and type 3 drive b is measured from the drive arm hinge point to the sliding contact point. You can however make a 6 wide board and use a 4 hinge but you may give up some stability.

An isosceles type barn door tracking mount tracks well for about 20 minutes if the polar alignment is good. All you need is something that looks like the wood in my pictures and two lengths of it. That means we want to spin our barn door tracker at a rate of 360 degrees every 24 hours which comes out to be 0 25 degrees per minute. Choose from our selection of barn door tracks including roller track roller track sets and more.

Using a 1 4 20 screw the distance from the hinge pivot point to the center of the screw is 11 42 inches. A simple single arm barn door tracker can be made by attaching two pieces of wood together with a hinge. Here are images for my barn door mount. Shoot stars planets and other nebulae with a camera that is.