Introduction: High-Grade Electromagnet

Picture of High-Grade Electromagnet

This instructable will show you how to make a high-grade electromagnet and unlike other electromagnets, this one is neater and more efficient . It can be used on a crane or just for fun. Enjoy!

Step 1: Step 1: Gather the Supplies.

Picture of Step 1: Gather the Supplies.

1. Copper Wire (100 ft. Coiled )

2. Nails(at least 3 inches on length)

3. Batteries((6) 1.5v D batteries or (2) 6v batteries)

4. Knife Switch(DPST)

5. Wire Stripping Pliers(Nose Needle)

6. Multimeter(1)

7. Lensatic Compass(1)

8. Safety Glasses

Step 2: Step 2: Prepare the Electromagnet.

Picture of Step 2: Prepare the Electromagnet.
After you have prepared the electromagnet, strip both ends of the wire.
Also, for every two layers of wire you will need two batteries(1.5v). Do not use more than this unless you have a nail that is very long. Then you will need to use more    wire. If you use (6) 1.5v D batteries or (2) 6v batteries) on a two layer electromagnet your battery will     heat up and may explode. Your wire will surely melt or get red hot. Again, for your safety , do not use more than is needed in this instuctable .
For my biggest electromagnet(8 or 9 layers) I need four or five (1.5v batteries).
You should try two layers as a test then try 8 layers.

Step 3: Step 3:Strip and Connect Wires to Knife Switch.

Picture of Step 3:Strip and Connect Wires to Knife Switch.

Using the pliers for this task, take four separate wires and strip all ends of each wire. Connect them to the switch.

Step 4: Step 4: Prepare the Battery(s)

Picture of Step 4: Prepare the Battery(s)

Take your batteries together and connect them in parallel or series. Series doubles the voltage(electrical pressure) and the amperage(energy or juice) stays the same, parallel doubles the amperage and the voltage stays the same. One example is if you have three 1.5v 500 mAh batteries in parallel, you will have a 1.5v 1500mAh circuit. Think ahead and make it easy to change the configuration of the batteries. Also the battery circuit will have its own wires (negative and positive) to connect to the switches wires.

Step 5: Step 5: Use the Measuring Devices

Picture of Step 5: Use the Measuring Devices

Before you flip the switch, test the circuit with the multimeter. If the electricity is flowing, proceed. If not, check all of the connections in the circuit.

If the circuit is complete, use the compass to check the electromagnets strength. The faster the needle turns towards the electromagnet , the stronger it is. Note that before you do this you will need to let the compass point north and south.

Step 6: Step 6: Safety.

Picture of Step 6: Safety.

In the event that something goes wrong, wear safety glasses and or gloves.

Step 7: Need Help?

If you have a question, or would like some advice on a project, send a email to
Now hack away!


PaleHorseRider (author)2014-12-16

I had always ended up making a motor out of wire, magnets and a battery.

I always throw it in a cup of water after I shape the wires flat to create a current.

gearup500 (author)PaleHorseRider2014-12-19

cool but why do you throw it in a cup of water?

PaleHorseRider (author)gearup5002014-12-20

Not throw it directly. Melt plastic on the wires and put the battery in a pill case. It creates a small current.

gearup500 (author)PaleHorseRider2014-12-21

Nice I didn't know about that. What kind of stuff do you do? I'm usually into electronics and rockets but sometimes I do other stuff on here

PaleHorseRider (author)gearup5002014-12-21

I just found a pill container and stuck a battery in there.

Heat gunned a small hold for a straw and melted plastic around it.

The straw pokes out of the top of the water and the wire goes in a C pattern.

kiwi-makes-things2000 (author)2014-09-17


wilgubeast (author)2014-08-22

Cool. Electromagnets are much more fun than is reasonable.

gearup500 (author)2014-08-21

Also, electromagnets can be used as inductors.

OogieMustBoogie (author)2014-08-21

Nice project! Does this electromagnet have poles?

Thanks! If you are refering to this electromagnet when it is on, then yes , it has magnetic poles. But while it it off it does not have any significant magnetic poles. However, if you use the electromagnet long enough it may hold a tiny amount a magnetism even when it is off.

About This Instructable




Bio: I live in the States and I love engineering/science. Inventing, building,modifying and taking things apart has been my thing ever since I was ... More »
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