Old woodturning lathe AC motor control

Thread Starter

Ron Pflaumer

Joined Jan 21, 2015
3


I have a very elderly ELF lathe with a small-ish AC motor. The BROOK motor starter packed up although pressing the electromagnetic slider in will run it until released. I'd really like to replace the starter unit with something much more modern which will include a simple speed dial too. RS-components seem to stock some very expensive alternatives but I thought perhaps I could build an alternative. I am a retired research tech with a little electrical/electronic experience and can follow a circuit diagram. Would anyone be willing to advise?
 

Kermit2

Joined Feb 5, 2010
4,162
most people change over to 90 VDC permanent magnet motors for these upgrades. continiously variable speed and more torque at low speeds vs AC motors with thyristor control schemes. google up lathe motor upgrades. there are many good examples
 
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