The Home Machinist!

Words are important! Sheave got me a lot closer to where I need to be, thanks!

And here is lathe

Good morning, let me back up a bit. After one of my step pulleys broke I had this idea of variable speed control, but its way over my pay grade just yet. My motor, mounted below the head, has a step pulley on it (that one is broken), it connects above to the counter shaft, to another step pulley. Th...

The motor pulley has 2" 6',7' and 8", the upper has 10,8,7,6. the motor rpm is 1725, not sure of the rpm range on spindle, will post pic when i figure that out.

I am hoping for some info, or to be pushed in the right direction, to find a helpful topic I could not find by searching. I have an old Elgin (Hardinge) lathe, with a 1 hp, 115 volt motor, with step pulleys (6',7',8') connected via a counter shaft. I have been wanting to add a variable speed control...