I need help. Could someone review the material I have to work with and tell me if I can create a circuit that'll power a lathe. I appreciate it greatly. My forte is wood turning not electronics. I need to boost the power of my shop built lathe.

 

You are better off to get a KB DC motor controller, they can be had on ebay, there are SCR bridge types and PWM, with the latter being preferable.
There is also the T.M. controllers, the MC-60 is SCR type.
That controller is a crude one and requires a power supply which does not meet the voltage requirements of your motors.
Max.

 

You are better off to get a KB DC motor controller, they can be had on ebay, there are SCR bridge types and PWM, with the latter being preferable.
There is also the T.M. controllers, the MC-60 is SCR type.
That controller is a crude one and requires a power supply which does not meet the voltage requirements of your motors.
Max.

Would something like this work?
https://www.amazon.ca/Stepper-Contr...170530&sr=8-4&keywords=dc+motor+speed+control

 

Further to post #5, the advantage with the controllers mentioned, they have features such as current monitoring and control and in some, presettable conditions via pots etc.
Max.

 

I found a treadmill motor control board locally for only $10.00 (the ones online were way to expensive, some over $300.00. The motor only cost me $20.00). Is this going to get my motor working? How to wire? Could I use the small motor controller I have pictured as a type of potentiometer? Again, I'm a wood turner not an electrician. I gotta get this dang motor on my lathe.

Thanks for all the input, I really do appreciate it.

http://i.imgur.com/mIDkuFl.jpg

 

Well the pot connector and power in and motor is marked, you would need a 5k to 10k linear pot, the only thing this board shows a speed sense input which may mean it used a opto sensor wheel on its motor, so it may be looking for this.
It also appears the incline actuator was included on the board, which of course you don't need.
Max.

 

Get the motor to turn at a single speed. The maximum current on the motor rating plate will give you full power. Then use a belt pulley arrangement to adjust the different speeds. Doing this will provide the maximum power as you actually use the lathe. Using direct speed control, as suggested above, will only provide fractional power.
https://jet.com/product/detail/3a8e...hH5ZUiXYLBm3LAy0AekOJ_dExhDa9plxXUaAosQ8P8HAQ
Use two of these, or something similar ... one on the motor and one on the lathe.
...looking at the rpm rating on the motor, you will want to set up a pulley ratio to reduce substantially from 2000 rpm ... or whatever that number is.

 

Using direct speed control, as suggested above, will only provide fractional power.
.

Where was it 'Suggested above'?
Max.

 

Is that motor controller intended for use with 120v/60cycle? ... can't tell.

 

Where was it 'Suggested above'?
Max.

... 'variable speed' would be another term.
Do you think a fraction of a horsepower is sufficient to power a lathe? ... at low speed?

 

It is marked 110vac, and the fact it is a DC power supply across the supply, 50hz or 60hz is not going to make a lot of difference.
Even with reduction, I would still want variable speed, the torque will increase at the rate of reduction.
Max.

 

The motor label states:
2.25 hp at 130vDC and 18 amps ... 2000 rpm?
If So, estimating:
at half speed, 1000 rpm and 1.25 hp
at quarter speed, 500 rpm and 0.625 hp
at one eighth speed, 250 rpm and 0.313 hp
at one sixteenth speed, 125 rpm and 0.156 hp

... markedly declining power at lower rpm. Only about 1/6 hp at 125 rpm.

 

The controller label says 60 volts and 20 amps.
So if you hook the motor up directly to the controller, you should get only about half the rated rpm. .... Guessing that you will need all the horsepower that you can get from the motor.

Have you tried the hook-up? Does the motor run directly from the controller?
If you try it out, watch out for overheating, both wires and control box. Those wires look small for the rated current.

... that is, using the dc converter in the top, original picture, can you get the motor to work? ... not the variable speed controller posted subsequently. It looks like a fairly straight forward hook-up. ...Blue wire from converter to motor positive, and green wire to motor negative.

 

The original 60v controller has been replaced by the T.M. controller in #7!
Max.

 

The motor here seems to be rated for 2 horsepower, which would be enough to be useful, if you could devise a way to power it adequately.

 

The motor here seems to be rated for 2 horsepower, which would be enough to be useful, if you could devise a way to power it adequately.

I tried putting the power cord directly to the motor. I plugged it in, got a big blue spark, and blew the fuse. It scared me off. The motor has a black, red and 2 purple wires. The power cord has the standard white, black and green configuration. Don't know what I did.

 

I tried putting the power cord directly to the motor. I plugged it in, got a big blue spark, and blew the fuse. It scared me off. The motor has a black, red and 2 purple wires. The power cord has the standard white, black and green configuration. Don't know what I did.

Hopefully you just blew the fuse, to test it to check to see if you have blown the motor, hook it up to a 12v automotive battery, the blk and red are the motor leads, the 2 purple are most likely the thermal sensor, leave disconnected.
Max.

 

Hopefully you just blew the fuse, to test it to check to see if you have blown the motor, hook it up to a 12v automotive battery, the blk and red are the motor leads, the 2 purple are most likely the thermal sensor, leave disconnected.
Max.

Yeah I did that, motor is fine. Purrs away. It wasn't a car battery though, used an old 18 volt cordless drill battery.

 

. It wasn't a car battery though, used an old 18 volt cordless drill battery.

The motor won't care.
The next step is to try in on the T.M. controller!.
Max.

 

You put mains AC to a DC motor ?

Please, please get a professional to sort this out.

Yes, I know you're right, I should do just that. It's not practical though. I have my lathe weighed down and bolted with 5/8" bolts. I got it weighing close to 300+ lbs. With a lathe, the heavier the better.