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Wiring a clothes dryer (tumble dryer) motor, directly to a power outlet to use in other projects like: Sander, Bench grinder, big fan, attach mirrors to use in laser project........whatever you want!

This instructable is focused on how to wire the motor and how to change the motor direction.

This motor is an AC electric motor with a starting capacitor and 4 wires.

This motor was salvaged from a Clothes dryer (tumble dryer). I did a detailed instructable on how to salvage items from a clothes dryer, Please go check it out.

Please excuse any spelling and grammar mistakes, English is not my first language.

I hope you enjoy this instructable!

Step 1: Safety

My dad always used to say: "Using the right tool/s for the job, not only makes the job easier and faster but also SAFER".

You might encounter a big capacitor in this project, please take the necessary safety precautions (this includes finding out as much as possible about the capacitor attached to your motor!)

You will be working with HIGH voltage and current, please do not attempt if you don't have the knowledge!

You will need the following safety equipment:

1) Safety Gloves;
2) Safety Glasses;
3) Knowledge of working with high voltage and current;
4) Knowledge of working with starting capacitors in AC motors.

Step 2: Tools and Equipment

Since this instructable is only focused on how to wire the motor, you will only need a few items:

1) The motor;
2) Side cutter;
3) Wires;
4) Isolation tape;
5) Wall socket for power.

Step 3: How to Wire the Motor

The motor, the wires and the plug was salvaged from a clothes dryer (tumble dryer) and you can view the details on how to salvage this and other items from my other instructable on that.

The plug that I salvaged has 3 wires (Live, Neutral and Earth), Brown, Blue, Green/Yellow. See photo 1 and 2.

........but the motor has 3 wires going into it, 1 earth wire.....that makes 4......
The motor also has 2 wires going to the capacitor.....

Don't stress......It is actually quite simple!

Photo 3 and 4 shows the 3 wires going into the motor. Blue, White and Red.

The Blue and Red wires going into the motor, are both Live.......

The White wire going into the motor, is Neutral....

This means that your Blue wire on your plug must be connected to the White wire on the motor. See photo 5.

The Brown wire on your plug can be connected to either the Red or the Blue wire on your motor. See photo 6.

Essentially the Blue and Red wires on the motor are the directional wires. The one will make the motor turn clockwise and the other will make it turn anticlockwise. You cannot connect both at the same time!

The Green/Yellow wire on your plug must be connected to the Earth (Green/Yellow) wire on your motor. This wire will connect directly onto the motor case. See photo 7.

Before switching on the power....

1) Make sure your connections are solid and sealed with isolation tape;

2) The wires, motor are not in contact with anything else or anyone else (Except the floor/ground);

You can switch on the power and your motor should turn. Note the direction in which your motor is turning.

Disconnect the power.....and wait for the motor to come to a full and complete stop.

Mark the direction in which the motor was turning on the wire.

Disconnect that wire and connect the other directional wire.

Before switching on the power....

1) Make sure your connections are solid and sealed with isolation tape;

2) The wires, motor are not in contact with anything else or anyone else (Except the floor/ground);

Switch on and look....your motor is turning in the opposite direction now!
what sbout an old mefium dixe ac space heater motor
Maybe you have not seen what happens when a grinding wheel fails then............. its a bit like a bomb exploding, tiny bits of stone flying around at high speed.
<p>You have seen this happen on a 1740 rpm motor? If so, I suspect the problem is more in the grinding wheel than in the motor.</p><p>Washer and dryer motors have long been a staple project machine motor. If you can find a legitimate reason a 1/2hp 1740rpm ac motor from a dryer is worse for a job than any other 1/2hp 1740 rpm ac motor by all means let us know.</p>
I for one don't find it difficult at all to get the sanding, grinding discs to rotate at the speed the manufacturer recommends.....you can make use of belts and gears to maintain the torque but lower the rpm's.<br><br>You simply have to make sure that your disc is not running at a higher rpm as rated by the manufacturer. <br><br>I do however know a thing or two about cutting, grinding and sanding discs......I used to sell Pferd cutting and grinding discs for 5 years.<br><br>And yes....I do know what a disc looks like when it &quot;explodes&quot;....<br><br>That is also the reason that you need to install &quot;guard covers&quot;, as I previously mentioned in my reply to you.<br><br>My instructable is NOT about any of this however (please read carefully).<br><br>I say at the beginning of my instructable that this instructable is ONLY about how to wire the motor. Not how to convert it into anything else.....<br><br>Also.....don't assume something will not work or cannot work, simply because you have never attempted it or don't know how to do it. <br><br>THE INSTRUCTABLE IS ABOUT HOW TO WIRE THE MOTOR.....NOTHING ELSE.
<br> <br>Wiring a clothes dryer (tumble dryer) motor, directly to a power outlet to use in other projects like: Sander, Bench grinder, big fan, attach mirrors to use in laser project........whatever you want! <br> <br>I was just politely pointing out that unless you know what you are doing this could be very dangerous. Motors from tumbers are simply not designed to take the loads and speeds that grinding or sanding operations require otherwise the manufacturers would use these much cheaper motors in their units. <br>:)
Hi This might seem like a great idea but there are some issues you need to consider: <br>to use this as a grinder would probably not be good, personally I would not be even willing to try because the speed of the motor and a grind stone need to be carefully matched. <br>To use it for a sander would be very dangerous as it is likely to have a no load speed of at least 2000rpm. <br>Please be careful when repurposing motors and make sure what you intend to use it for is safe especially when spinning grind stones at high speeds.
I used them in both those cases (and plenty more) with zero problems.....<br><br>I did however install guard covers when using them for grinding, sanding, etc.
Using gears/belts also helps!
<p>Hey, another great project!</p><p>I just have to point out that your English is better than several native speakers I know. I doubt anyone would ever notice or even consider if it was your first language or not! :)</p>
Thank you!<br><br>I am trying........I am!<br><br>Feels good to get a positive response on the use of my English.

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