- Joined
- Apr 30, 2015
- Messages
- 11,288
Oh yes that motor pulley is way too big, no wonder it's running so fast- there's your first project
Mark
Mark
Last edited:
I indicated the chuck this morning. At the back of the chuck, nearest the spindle, runout is about .003"
With a piece of round stock chucked up and measured as close to the jaws as practical, it's more like .030" Obviously, that's a problem. Not sure where to start looking for the fix.
Also, motor is a 1725 RPM 3/4 hp. 5" on the motor, 10" on the belt pulley shaft so upper pulley set (countershaft?) is running at 860-ish RPM.
Perusing the catalogs at Vintage Machinery, I'm seeing max spindle speeds of 340 RPM for the 9" lathe and countershaft speeds of 175 RPM. Am I reading that right? If so, I need a 10:1 reduction on the motor.
Nice score. What's the most recent patent date on the front of the bed and any other markings?
I've been pretty happy with mine.