Barn Door Tracker Help Please
Posted 13 October 2013 - 09:10 PM
I am going to donate it to my son's school so even if it's unfeasible to retrofit to electrically track I am sure manually turning by hand would be just as effective as a teaching tool.
Do you thinking posting this in the ATM section would be helpful as well.
Posted 13 October 2013 - 11:39 PM
It should be easy to motorize because all that's needed is to set a small motor against the edge of the CD that will rotate it at 1rpm. Anything using a DC motor will require a regulated power supply to give a constant rotation rate for the CD. A stepper motor kit, once adjusted for the correct step rate, might be easier to use.
Check around and see if there's an amateur radio club or a "ham" in your area where you can get some assistance with the electronics.
Posted 14 October 2013 - 12:17 PM
Posted 14 October 2013 - 06:29 PM
Posted 15 October 2013 - 08:10 AM
Posted 15 October 2013 - 10:28 AM
The curved rod keeps this distance constant, allowing for a long period of tracking without changing the dimensions that make this device work. An alternative to the curved rod is to use a straight rod and add a curved wedge to the bottom board that keeps the hinge to rod contact point distance constant as the hinge opens. The wedge approach will severely limit the tracking time when compared to the curved rod design but it allows the rod to be turned instead of rotating a captured nut to open the hinge, a simpler design.