John Thornton wrote: > Oh to answer your question: > 1 to get a quieter drive, the vari-speed is very noisy even with new > everything. > When the bushings in the motor pulley are shot, the moving flange wobbles and wears away at the motor shaft. Eventually, the motor shaft is destroyed, then you have an expensive repair. It sounds like this might be your problem. The machines at work are very quiet, although they get louder over time. They have some guy who comes in and rebuilds the heads periodically. > 1a the vari-speed drive goes from 500-4200 RPM but over 2k you can't > stand to be in the shop with it. > 2 to be able to set my RPM from 175-5200 with S in g code. > 3 did I mention how noisy the vari-speed drive is? > I thought at one time about replacing the Vee belt and pulleys in my 1J head with some sort of power-vee belt and adding an additional step for faster speeds. I never got around to it.
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