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AndrewB

Variable Speed Control plugged into a Harbor Freight Wood Lathe

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  So this morning I went hunting around for my variable speed control.  Which I had previously used for my blower fan that connected to my twier and into my coal fire forge.  Worked quite nicely for that and moved a ton of air.  Either way I had repurposed it.  I wanted to test something out to see if I could get a slower speed than 600 RPM on the Harbor Freight wood lathe.  So I hooked the variable speed into the lathe this morning to test that theory.  I don't have a tacometer to verify it.  How ever it seems to have worked.  It does make a couple of clicks but I can only assume that the clicking noise is the variable speed control talking to the motor telling it to spin at a certain speed.  Here is the video result of the hole thing.  No music just lathe sounds.  Almost 2 minutes.  So score 1 for me.

 

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Does the tag on the motor state if it is a split phase motor?

The clicking you are hearing sounds like the centrifugal switch that controls the start winding.

When you lower the speed to far the centrifugal switch closes energizing the start winding.

You could burn out the start winding running it that way.

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10 hours ago, Gerald said:

I thought he said it had a Reeves Drive. Cannot change pulley if it is.

Could be done if the fixed sized pulley is on the motor, and is not already the smallest pulley available.

Of course doing so would also lower your upper speed range.

 

 

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I agree with that statement I tend to more prefer the low end speeds of about 300 to 1000 RPM and even then 1000 RPM seems to be a decent turning speed for me to handle.  When I did the pen turning which has been somewhat on back burner the 2K RPM just kind of spooked me some.

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49 minutes ago, HandyDan said:

Upper speed is always too fast in my opinion.

 

38 minutes ago, AndrewB said:

I agree with that statement I tend to more prefer the low end speeds of about 300 to 1000 RPM and even then 1000 RPM seems to be a decent turning speed for me to handle.  When I did the pen turning which has been somewhat on back burner the 2K RPM just kind of spooked me some.

In that case if the fixed pulley is the motor pulley and you can go to a smaller sized pulley you can lower your speed range. If your present pulley size is large enough that you can replace it with a pulley half it's size you'll cut your speed range roughly in half. You'll also need to go with a shorter belt.

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