Hi
My lathe varies speed through a 2 pulley system one on the motor shaft
and one one the lathe spindle. As you change the speed one pulley will
open up reducing its diameter as the other pulley will close down
increasing its diameter. There must be a name for this type of system
but I don't know it.

My problem is the slowest speed is still too fast for the bigger
blanks.
Is there a way I can change the speed of the AC motor to compensate
for the high ratio of the pulleys.

Thanks in Advance


Peter