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  1. Honk

    How do you set FEMM magnet properties correctly?

    Hi. I find FEMM library settings for magnets very confusing. There is no Remanence Br setting, only Coercive Force HcB. And finding data for manual input is almost impossible! Does anybody here have a FEMM PM magnetic library to share. One that contains either weak NdFeb N25SH, N27SH or Strong...
  2. Honk

    Mesh problem in my FEMM simulation

    Hi. I've managed to import my design from DXF in FEMM. But I get some errors I can't fix as I don't understand what's wrong. Could I ask for some analysis help on this? Thanks in advance.
  3. Honk

    Swapping Ampflow A40-300 magnets to NdFeb

    Hi. I have bought an Ampflow A40-300 that I would like to rebuild for lower KV. Originally it's 167KV (4000RPM at 24V). As I want to keep the copper resistance at 50mR I don't want to rewind it (pain in the !!! as it is glued hard) So I was thinking about replacing the ferrite magnets by...
  4. Honk

    Prop optimization at 6KW and 4500 rpm

    Hi all. This thread is about the optimization of a propeller for an electric direct drive outboard at 6000W and 4500 rpm. It originates from the Overvolting af a Minn Kota outboard thread. http://endless-sphere.com/forums/viewtopic.php?f=39&t=38897&start=15#p594246 I felt it was time to stop...
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