You can however make a 6 wide board and use a 4 hinge but you may give up some stability.
Barn door tracker arduino.
Arduino stepper motor control john barton wood april 4 2014 at 8 10 pm.
Note also the red dot sight for alignment.
Assembly setting up your door tracker.
So i measured a nice and constant 7 255e 5 radians second over 10 minutes.
Eurotrax on mar 30 2015 01 03 am.
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.
19 thoughts on building a barn door mount part 1.
Hi i am a retired electro optical and controls systems design engineer having also served an apprenticeship as an optical instrument maker in the early 60 s.
David hash s arduino barn door tracker university student david hash now an aerospace engineer updated peterson s build with an arduino pro microcontroller 1 8 stepper and pololu microstepping driver board to give 3 200 microsteps per rotation figure b.
Then i let it run with my tracker for a while and did some least squares fitting to see how it was working.
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.
The arduino board and its associated shield are mounted on the base of the barn door tracker.
Arduino controlled barn door star tracker 30 mar 31 2015 05 33 pm.
Cut your two blocks of wood pieces into 13 x 4 pieces.
The arduino board and additional circuitry can be powered with a 7 2 volt nicd battery for portability or a standard plug in power supply.