Braking on a lathe. I've used a few in the past that had mechanical brakes, foot and hand operated, I've never operated lathe with electronic speed control, including braking.
My lathe is 240v single phase and single speed. 1.5 h.p. I have no desire to go to 3 ph. and VFD. By the time I put in 3 ph power, a new motor , plus VFD, it's all too much. I have enough power as it is.
However I've been thinking. Of using the electric clutch of an automotive air conditioner fitted to the belt pulley so when the clutch is activated it acts as a brake. I already have a12v dc supply near the lathe as my lathe lighting and coolant pump, plus a few other things, are 12v. A simple kill switch or even a foot pedal to activate the clutch and shut off power to the motor, should stop it pretty quick.
It has even occured to me that using a couple of these clutches I could get a two speed drive, just by having different sized pulleys on each one.