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  1. Then I'd lose some top speed. VFD is an easier...

    Then I'd lose some top speed. VFD is an easier solution. I do a lot more small work than large,and don't want to lose top speed.
  2. My lathe has the motor connected to the spindle...

    My lathe has the motor connected to the spindle with 2 variable diameter pulleys only. One on the motor and one on the spindle. I'd replace the motor with 3 phase,but it is a special shaft motor,I...
  3. Now,this is some useful information. Are these...

    Now,this is some useful information. Are these something new? I might get one for my 1 phase Oliver wood lathe,minimum speed is 500 RPM. Need it to go slower.
  4. I do not think that they will operate 1 phase...

    I do not think that they will operate 1 phase motors,David.
  5. If it only HUMS,it will soon burn out!!!:):):)

    If it only HUMS,it will soon burn out!!!:):):)
  6. You want a fast quench if your cutting tool...

    You want a fast quench if your cutting tool suddenly gets too hot! No oil quenches as fast as water. Water by itself is hard on machines,so they found ways to slow down the corrosiveness of water.
    ...
  7. Why would you do that? Water is a more effective...

    Why would you do that? Water is a more effective quench.
  8. Probably mostly over uses the switch,wearing it...

    Probably mostly over uses the switch,wearing it out. Especially with these cheap Asian grinders which we mostly have,I'd be careful about over use of the switch. My old 1964 Craftsmans are still...
  9. iI just dip the chisel in water and quench it the...

    iI just dip the chisel in water and quench it the instant the water starts to boil off. This is every 2 seconds when the edge is getting thin. NO NEED for slow speed grinders. If you want a cooler...
  10. High speed grinders are just as good as slow...

    High speed grinders are just as good as slow speed. Just quench more often. I have never had a regular old style dry bench grinder that was slow speed. You can slow down a 1 phase motor with a...
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