Myford Super 7 – electrics/motor

[SillyOldDufferModerator @sillyoldduffer]

Posted by John Haine on 08/05/2023 16:02:58:

Posted by Penfold on 08/05/2023 15:41:41:

…… A potential never ending source of debate, but any views on which is the most sensible to learn on?

Thanks,

Chris

Makes no difference.

Agreed. Single phase motors aren't awful, it's just that 3-phase are smoother, have more torque, and can be speed controlled.

Changing speed on a single-phase machine is a mild flap, requiring belts to be moved to get perhaps 3 fixed speeds. Fitting a VFD saves time by reducing the number of belt changes needed, and allows speed to be fine-tuned, which is moderately handy.

None of that matters when learning, and most Myfords have never had speed control. However, if the single-phase motor is bust, there's advantage in replacing it with 3-phase. All those who've done it seem pleased with the result.

Dave

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