Magnetic Uncouplers

 
  Bob_B Beginner

I'm having trouble finding Bachmann HO 78999 Magnet with Brakeman.
I've been told that Kadee make the same product but I'm unsure as to what
type would be a suitable alternative to suit Bachmann E-Z Track.
They must be mounted under the track and preferably not permanently fixed.

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  David Peters Dr Beeching

Location: "With Hey Boy".
I'm having trouble finding Bachmann HO 78999 Magnet with Brakeman.
I've been told that Kadee make the same product but I'm unsure as to what
type would be a suitable alternative to suit Bachmann E-Z Track.
They must be mounted under the track and preferably not permanently fixed.
Bob_B
I would say that a between the rails Kadee magnet would do the job as these can be used with just about any HO track. As Bachmann E-Z track has a plastic base it should be a simple matter to glue or stick it down with Blutak or something down in between the rails where ever you want or need them. You might be even able to glue it under the track base out of sight and still have it work they are a pretty powerful magnet in these. You might even be able to use the under the rails electro magnet version as well as again the track base is plastic and will not affect the magnetism when the button is pushed.
  SAR523 Assistant Commissioner

Location: Chicago, IL
Never tried putting them under Easytrack, but putting little super magnets between the sleepers (ie against the rails) is something I'm seeing more and more. They're less intrusive than the "between the rails" kadee uncouplers and they're much stronger (on par with a heavily wound magnet, without the ever present risk of them burning out).

Given how strong they are, I can't imagine there would be much of a problem with them holding themselves under the track, attracted to the rails themselves.
  Aaron The Ghost of George Stephenson

Location: University of Adelaide SA
Never tried putting them under Easytrack, but putting little super magnets between the sleepers (ie against the rails) is something I'm seeing more and more. They're less intrusive than the "between the rails" kadee uncouplers and they're much stronger (on par with a heavily wound magnet, without the ever present risk of them burning out).

Given how strong they are, I can't imagine there would be much of a problem with them holding themselves under the track, attracted to the rails themselves.
"SAR523"

Only the black road bedded Bachmann track is magnetic, and being steel rail it is hardly recommended for use. More favourable nickel-silver rail is not magnetic so you will need some other mechanical form of magnet fixing.
  SAR523 Assistant Commissioner

Location: Chicago, IL
Only the black road bedded Bachmann track is magnetic, and being steel rail it is hardly recommended for use. More favourable nickel-silver rail is not magnetic so you will need some other mechanical form of magnet fixing.
Aaron
Indeed, I was getting them confused.

Yes, would need some other method to attach them to the underneath.  Or alternatively, if the easy removal is important because the track is getting lifted up regularly, and the visual is tolerable, I'd just stick them on top between the sleepers with perhaps a little bit of blu-tack holding them down.
  miktrain Deputy Commissioner

Location: Adelaide SA
...putting little super magnets between the sleepers (ie against the rails) is something I'm seeing more and more. They're less intrusive than the "between the rails" kadee uncouplers...
SAR523
Paradigm has always had scratch-built uncouplers as does our permanent layout but you really need to have some steel rail on each side to stretch the magnetic field out. We do this by replacing two sleepers with circuit-board and then solder the steel rail to it disguised as a barrow crossing. If you go this route then be sure to isolate between the magnets with a bit of plastic or there will be a short across the track. After the what we saw on the long weekend there will now be an even better method on all our future layouts.

Tony
  Bob_B Beginner

Thanks for the suggestions everyone.
The track is nickel silver and I have already tried some very strong magnets under the track held with plasticine but they weren't successful.
I'm ordering a "Kadee #321 HO Scale Delayed Uncoupler (between-the-rails) Code 100" to see how that goes.
They are meant to be glued and I suspect trying to use something like Blu-tack may make them sit too high.
I'll keep you posted.
  sol Assistant Commissioner

Location: Evanston Gardens SA
Bob_B - if it is too high, remove sleepers & then use packing to get correct height -  this is normal if using code 75 or 83 rail.
  Bob_B Beginner

Bob_B - if it is too high, remove sleepers & then use packing to get correct height -  this is normal if using code 75 or 83 rail.
sol

I was hoping for something non-permanent as the reason I got E-Z track was for portability. However I suppose I could modify 9" sections for uncouplers and place them where needed. Or even on the end of some of my 36" sections for that matter.
  Aaron The Ghost of George Stephenson

Location: University of Adelaide SA
I was hoping for something non-permanent as the reason I got E-Z track was for portability. However I suppose I could modify 9" sections for uncouplers and place them where needed. Or even on the end of some of my 36" sections for that matter.
"Bob_B"

You won't require much force to hold them in position, just use tiny blobs of blu tak between the sleepers, that only barely sit above the sleepers. As you push the magnet down the blu tak will contact the magnet and be squeezed back into the between sleeper void, that will probably be sufficient holding.

OR, since you already mention having some other strong magnets, you can make use of another neat magnetic property, that being your strong magnets placed under the track bed will probably supply enough attraction to you Kadee magnet to keep the Kadee magnet fixed.
  Bob_B Beginner

You won't require much force to hold them in position, just use tiny blobs of blu tak between the sleepers, that only barely sit above the sleepers. As you push the magnet down the blu tak will contact the magnet and be squeezed back into the between sleeper void, that will probably be sufficient holding.

OR, since you already mention having some other strong magnets, you can make use of another neat magnetic property, that being your strong magnets placed under the track bed will probably supply enough attraction to you Kadee magnet to keep the Kadee magnet fixed.
Aaron
I meant if I had to remove the sleepers, as mentioned earlier, it would be somewhat permanent.

Thanks for the under track magnet tip. That may well do the job. Hopefully I won't have to remove any sleepers as the Kadee #321 are designed for code 100 track and E-Z track is code 100.
  Kevin Martin Chief Train Controller

Location: Melbourne
Thanks for the suggestions everyone.
The track is nickel silver and I have already tried some very strong magnets under the track held with plasticine but they weren't successful.

Bob_B
Probably because the magnets have to have their force sufficiently far apart, to work properly, especially for the delayed action. Also they cannot work if the track is curved. Best to obtain the genuine magnets & use a gauge.
  miktrain Deputy Commissioner

Location: Adelaide SA
Probably because the magnets have to have their force sufficiently far apart, to work properly, especially for the delayed action. Also they cannot work if the track is curved. Best to obtain the genuine magnets & use a gauge.
Kevin Martin
Actually more likely that the magnets were set wrong, they must be set with the poles across the track so that the pull is sideways.
Kadees do not normally work on curves that is true but if they are bogie mounted then they will do so very well, I have some on coaches that will work fine on 450mm curves.

Tony

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