uncoupling magnets

Discussion in 'Members Personal Layouts' started by ianvolvo46, Mar 25, 2016.

  1. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    Not sure if the info is already on the forum or if this is the correct place to ask... but what type of magnets are favoured for uncouplers using large tension lock type couplings and where can I source them. I've seen a method whereby a small piece of rod is glued/soldered onto the hook and magnets buried in the track.

    Ian
     
  2. Toto

    Toto I'm best ignored Staff Member Founder Administrator

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    Neodymium magnets. They come in various guises. If I can find a link for you, I'll post it up unless someone beats me to it

    Toto
     
  3. Gary

    Gary Wants more time for modelling.... Staff Member Administrator

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    Magnet supply in the UK : http://www.guysmagnets.com/

    or there is ebay : http://www.ebay.co.uk/bhp/neodymium-magnets

    Cheers, Gary.
     
  4. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    Cheers Gary

    :thumbup:
     
  5. Toto

    Toto I'm best ignored Staff Member Founder Administrator

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    You've gotta be quick on here. Let us know how you get on and what you go for.

    Cheers

    Toto
     
  6. paul_l

    paul_l Staff Member Administrator

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    Ian

    Gormo has done several videos on the subject .......

    The Staple Bending Jig

    https://youtu.be/kTZnfxoC1xQ



    Even with delayed uncoupling

    https://www.youtube.com/watch?v=yJSXJZ5P0Ug



    You never know, ask nicely, and you may be able to get the maestro to give us a write up ;)

    Paul
     
  7. gormo

    gormo Staff Member Administrator

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    G`day Ian.......Happy Easter,

    I can do a write up for you about the methods I`ve used with magnets and tension lock couplers.

    It is not my own invention but rather that of a gent called Brian Kirby.

    I have taken his idea and played around with it slightly and come up with my version.

    My time over Easter is all allocated to family so please give me a couple of days to clear the decks and then I`ll post some details of how it works.

    http://www.click:tophat: Gormo
     
  8. Toto

    Toto I'm best ignored Staff Member Founder Administrator

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    Happy Easter Gormo.
     
  9. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    Thanks Gormo I've looked up Brian Kirby's method and I am interested in doing a variation of the idea. When I came here I purchased a shed load of tension lock couplings (ferris metal) for the Airfix wagon kits and I'm going to try kitchen door magnets from the Chinese 'everything' shop here. Have a great Easter with your family.

    Ian
     
  10. gormo

    gormo Staff Member Administrator

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    G`day Ian,
    Ferris metal will be attracted to magnets......you may have a problem there. The Kirby method uses Bachmann couplings and the coupling hooks are brass.....therefore no attraction.
    I fear your couplings in ferris metal may not be successful because the vertical drop down part of the coupling will be attracted to the magnets and it will pull down rather than up.
    Must go sorry......more later.
    http://www.click Gormo
     
  11. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    G'deaster Gormo thanks for that so it means I have a challenge so.... after a few easter tintos I'll work on it.

    Ian
     
  12. Gary

    Gary Wants more time for modelling.... Staff Member Administrator

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    Have you considered using Kadee couplers ?? :scratchchin:

    I'm guessing that there is not a lot of rollingstock on the layout, so in reality, the cost of changing to Kadees shouldn't break the bank. Small neodymium magnets can be used for uncoupling as well and the beauty of using Kadees is the delayed effect where you can uncouple then push the wagon wherever you like, without the couplings locking back in place !

    Here is a good 'how to install neodymium magnets', into a completely ballasted track.

    https://www.youtube.com/watch?v=LGyVfSyDlp4



    Cheers, Gary.
     
  13. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    Thanks Gary kadees would be good alternative and I may well resort to them ... but initially I fancy the challenge. The Chinese shops over here are famous for selling most things from safety pins (remember them) to hinges, spanners, kettles and make up. So I may do a thread on my exertions/failures etc.
    Ian
     
  14. gormo

    gormo Staff Member Administrator

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    G`day Ian,
    Managed to quickly put this together for you tonight.
    Hope it helps.
    Direct Link to YouTube

    http://www.click:tophat:Gormo
     
  15. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    Thank you Gormo it's appreciated now get back to your choccy egg before it melts in the Sidney sun ... happy Easter

    Ian
     
  16. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    Excellent video explanation Gormo, when you get the chance could you let me know the Bachmann part number for the couplings and size of magnets it's certainly got me very interested in the method.

    Ian
     
  17. gormo

    gormo Staff Member Administrator

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    G`day Ian

    There are two possibles with the screw on couplings.

    Short and Long......relating to their length.

    I use the short version ,which gives closer coupling of wagons, however you need to test your wagons when pushing through curves or points and make sure the short coupling does not cause buffer lock. If it does cause the buffers to lock, you would need to choose the Long version instead.

    Bachmann Catalogue Numbers.

    36-026 Mini Loop Screw-On Coupling Short (Pkt. 10)

    36-026 Mini Loop Screw-On Coupling Long ( Pkt. 10)

    Bachmann`s price is 8 Pound 95 Pence per packet.

    There are also NEM versions with part no`s as follows.

    36-027, 36-030, 36-061, 36-064.

    http://www.bachmann.co.uk/prod1.php?prod_selected=branchline&prod=8

    The Neodymium magnets I am using are Round 3mm Dia. x 2mm Thick.

    You don`t necessarily need to use round versions.....it`s up to you....there are many variations on the size and shape but basically it breaks down into....Round, Square and Rectangular and all of them range from very small to rather large.

    If you Google Neodymium magnets you may find a supplier in your neck of the woods.

    I hope this has been helpful Ian and enjoy the rest of your Easter break.

    http://www.click :tophat: Gormo
     
  18. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    Thanks a lot Gormo, couplings duly ordered from Hatton's (v reasonable price) and magnets also ordered x 100 @ £5.75 inc postage (might get the other 5/8ths to make some fridge magnets to sell, it'll give her something to do). Got lorra lorra staples and a soldering iron so watch this space.

    Ian
     

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