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Author Topic: DG Couplings and Permanent Magnets  (Read 1098 times)

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Offline Big bad John

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Re: DG Couplings and Permanent Magnets
« Reply #15 on: November 08, 2017, 02:45:24 pm »
They should do the job you need it's just that I use them to repel permanent magnets. For your situation I don't think the polarity of the connections would matter either unless the couplings are magnetized.

Offline Black Sheep

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Re: DG Couplings and Permanent Magnets
« Reply #16 on: November 08, 2017, 03:10:32 pm »
They should do the job you need it's just that I use them to repel permanent magnets. For your situation I don't think the polarity of the connections would matter either unless the couplings are magnetized.

doh, should have thought of reversing the polarity!

on a side note, that's not a hornet in your profile picture is it?

Offline Big bad John

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Re: DG Couplings and Permanent Magnets
« Reply #17 on: November 08, 2017, 04:45:59 pm »
No it's an XJR 1300sp

Offline Black Sheep

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Re: DG Couplings and Permanent Magnets
« Reply #18 on: November 08, 2017, 04:52:29 pm »
fair enough,

Had a ZZR and recently got a Hornet

Offline Black Sheep

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Re: DG Couplings and Permanent Magnets
« Reply #19 on: December 03, 2017, 10:39:19 pm »
Finally got things wired up to test and one coupling built!

Anyone know what measurement they actually cut the actuating wire to and any advice on shaping it and holding it in place while soldering it?

Thanks :D

Offline lil chris

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Re: DG Couplings and Permanent Magnets
« Reply #20 on: December 10, 2017, 07:05:21 pm »
I have built my first d & g coupling, I used florist wire and made a one piece loop to avoid soldering.
Lil Chris
My layout here East Lancashire Lines
http://www.ngaugeforum.co.uk/SMFN/index.php?topic=29492.0

Offline Black Sheep

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Re: DG Couplings and Permanent Magnets
« Reply #21 on: December 10, 2017, 08:41:14 pm »
I've done some enquiring about one piece loops and have been told that over time they do magnetise and stop working.

one thing I'm worried about is, the way in which the single wire wraps around, the side with the dropper on is not supported and the loop may open up over time, especially on longer trains?

 

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