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Help please Lathe running slow in reverse

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andyf:
It's a well-known feature of mini-lathes. Switching the motor to reverse brings an extra resistor into the speed control pot circuit, to (roughly) halve the speed. Some say that this is because the motor brushes are slightly angled for best performance in when running forwards, I don't know about that, but whatever the reason, it's meant to go slow.

It isn't to stop chucks unscrewing,  because mini-lathe chucks are bolted on to a spindle flange.

Andy

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