My original post November 2017 on my magnetic uncoupler disappeared from my Blog.
The Kadee between the rails uncoupling magnet works very good, almost too good so I fixed it.
I decided to make the magnet drop down below the track out of range of the coupler "hose" to prevent the influence of the magnet field.
I cut away the ties between the rails so that the magnet could move freely.
Next I built a box to hold the moving magnet.
So far so good
I cut out a .08" thick piece of Styrene sheet the exact size of the magnet and drilled a hole in the center for the moving support rod. I sleeved the hole in the bottom of the box so that the rod would be able to move up and down with a precision movement.
As the rod is steel music wire and not easily soldered I super glued a small ring of the brass tubing as the lift point of the moving magnet.
I attached a dual coil (latching) switch machine to the box to lift the magnet to the proper operating level.
I built a second Mel Uncoupler and both have worked flawlessly for three years.
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