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  1. Boris A

    Magnet charger design

    Thanks MagMike for the sim results. Looks like its not strong enough. One final question: how does the length of the armature plus coil affect the strength of the flux?
  2. Boris A

    Magnet charger design

    Yes thats the charger. Those black blocks are cast iron 1.25 X 2.25 x 3" I tried to reduce the flux path length as much as possible to the magnet being charged. Is that beneficial? Your finding that the core may be saturating is very helpful thanks!
  3. Boris A

    Magnet charger design

    Thanks dallup, FEMM sounds like just what I need. Unfortunately I have a Mac, so it won't work for me unless I fire up my old Win 98 laptop. So thanks MagMike for running a sim for me! And thats just the measurement I need. When you say "face of the steel" are you referring to the ends of the...
  4. Boris A

    Magnet charger design

    Hi everyone My hobby is antique engines which frequently come with magnetos. These magnetos can be over 100 years old and sometimes need thier permanent magnets "recharged". I have designed and built a magnet charger that has a single pole rather then two poles that is the more common design for...

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