This is looking into the end of my motor showing the stator windings I used to determine the 'width' of the flat I need to cut in the armature to enable it to sync with the incoming ac waveform. The motor is a 1HP 1450 RPM induction motor that now runs at 1500RPM since the modification. see a close up of the windings below.
You can clearly see the milled flats in the armature above, for a 1500 RPM motor, 4 flats are required.
The two pictures above show the disk rotor with the thoriated tungsten electrode already in place. There are ten electrodes held in place by grub screws in a ten inch UHMWPE disk, (Ultra High Molecular Weight Poly Ethylene). I have run this unit up to 7 KW for 4 minutes at a time with absolutely no heating whatsoever.
The following series of images show the completed unit with the stationary electrode supports.
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