Quick JET 13 X 36 BD video

Great write ups and pics! I have the same lathe with an AC 2hp motor, please explain how a 3/4hp DC has enough power to do the same work. I get the huge advantage of the variable speed but I don't understand how you have equal or better torque and power. As you can tell by this question I don't know a lot about electric motors, just hoping to expand my knowledge here.

thanks, Brian
 
It's all about torque and the DC motor has a tachometer that if the motor is slowing down it applies voltage. I could easily stall the 2.5hp AC motor with a rag on the chuck.There is no way I can stall this motor. Anmd MUCH smoother. The surface finish is now amazing without the 60hz AC ripple.
 
rbertalotto said:
It's all about torque and the DC motor has a tachometer that if the motor is slowing down it applies voltage. I could easily stall the 2.5hp AC motor with a rag on the chuck.There is no way I can stall this motor. Anmd MUCH smoother. The surface finish is now amazing without the 60hz AC ripple.
Click to expand...


thanks for the answers! Again, really nice mods to your lathe.

Brian
 
I setup a couple stamping presses at work with the same motor. They run all day and they have lots of power as you have noted.
Pierre
 
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