31 May 2021

A bank holiday which actually had sun. I had to go sort the garden as 
there were no excuses left. A spot of cutting grass for the first time 
in too many months and weeding. My arm is still sort of dead arm 
feeling from the jab on Saturday so I felt it. The afternoon has been 
spent trying to get XFEMM working with Octave. XFEMM is a cross 
platform version of FEMM, a program for designing electrical machines. 
There are some nice integrations with Matlab and Octave which woukd be 
good for work. It has been a long time since I tried to work with 
Matlab or Octave so there was lots of remembering to do. I managed to 
get the example working so it is looking promising for getting it 
working at work. All this as I struggle to trust MotorCAD and I have 
to build physical versions to learn how off it is. Electrical machines 
are annoyingly complicated! I also found a good paper on SR machines 
with embedded permanent magnets.