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Old 07-31-2011, 11:16 AM   #1
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Help with wiring egg turner


Hello I'm trying to build a egg turner for a homemade incubator and need some help wiring up a 12v dc motor with a DPDT relay(to reverse polarity),a couple limit switches and timer. I found a video on youtube that is excatly like I want to do except I need the turner to stay in one postion for about 2 hrs then switch to the other side for about 2hrs and want to control that with my timer. Can someone help me please. Thanks

Heres the video on youtube

http://www.youtube.com/watch?v=j48eKdsBCDE

Last edited by sportsman70003; 07-31-2011 at 11:18 AM.
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Old 08-03-2011, 03:58 PM   #2
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Help with wiring egg turner


Need some help please
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Old 08-03-2011, 04:39 PM   #3
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Help with wiring egg turner


What is the coil voltage rating on the relay?
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Old 08-03-2011, 04:42 PM   #4
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Help with wiring egg turner


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Originally Posted by a7ecorsair View Post
What is the coil voltage rating on the relay?
I haven't bought the DPDT relay or limit switches yet. Waiting on some advise on which ones I need and how to wire it up.
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Old 08-03-2011, 06:05 PM   #5
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Help with wiring egg turner


Use a digital timer that has at least 12 on/off cycles, set it up to turn on for 2 hours, then off for 2 hours. Connect a DPDT relay with a 120 VAC coil to the output of the timer. Use the contacts of the relay to reverse the 12VDC to the turner motor.

Here is a timer:

http://www.radioshack.com/product/in...25#tabsetBasic

Here is a relay and socket:

http://www.radioshack.com/product/in...ductId=2049721

Good luck
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Old 08-03-2011, 06:23 PM   #6
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Help with wiring egg turner


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Originally Posted by rjniles View Post
Use a digital timer that has at least 12 on/off cycles, set it up to turn on for 2 hours, then off for 2 hours. Connect a DPDT relay with a 120 VAC coil to the output of the timer. Use the contacts of the relay to reverse the 12VDC to the turner motor.

Here is a timer:

http://www.radioshack.com/product/in...25#tabsetBasic

Here is a relay and socket:

http://www.radioshack.com/product/in...ductId=2049721

Good luck
I have a timer that has 20 cycles a day. I will pick up a 125VAC/10A DPDT Relay. I also need 2 limit switches just like in the video and a diagram of how to wire it up.
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Old 08-03-2011, 07:01 PM   #7
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Help with wiring egg turner


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Originally Posted by sportsman70003 View Post
I have a timer that has 20 cycles a day. I will pick up a 125VAC/10A DPDT Relay. I also need 2 limit switches just like in the video and a diagram of how to wire it up.
Try this:



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Old 08-03-2011, 07:26 PM   #8
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Help with wiring egg turner


AUTOMATIC ELECTRIC EGG TURNER

Temperature is controlled by a modified 250 watt aquarium heater and 4 incandescent light bulbs or a toaster wire filament. Traditional wafer thermostats can be used. Principal of operation: The egg turner uses an inexpensive, surplus 12 volt, direct current motor. A direct current motor changes direction of rotation if the electrical leads are reversed. The control is by way of an inexpensive irrigation sprinkler timer using Stations 1 and 2. The hookup to station 1 is plus wire (hot) to terminal 1screw and the ground wire to the common screw. Station 2 is reversed, with the hot wire going to the common screw and the ground wire going to the terminal 2 screw. Set timer to energize Station 1 for 1 (one) minute. Set timer to energize Station 2 for 1 (one) minute. Set Station 1 to operate 2 times a day, 12:00 noon and 12:00 midnight. Set Station 2 to operate 2 times a day at 6:00 AM and 6:00 PM. Adjust the spring screw to insure that the trays operate, but not so tight as to stop the motor at the end of the stroke. The plywood disks operate as clutch and pressure plate and will slip for the remainder of the one minute after the turner has cycled. This repeats every 6 hours or more often if more stations are used. Parts are noted with part numbers and suppliers’ where applicable. Drawings are adequate, computer generated, and easy to read with drawings in inches and various isometric illustrations.

http://www.mydiyplans.com/egg_incubator.html

Of course, if you really want to get geeky, and use a computer http://www.chickenhouse.me/20-egg-rc...ays--155-p.asp
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