How to make dc motor

Now we can make small  dc motor at our home ourselves.

What You Need:

• Insulated copper wire
• Black permanent marker (such as a Sharpie)
• Scissors
• Small neodymium disc magnets
• D-size battery
• Battery holder (sticky tack or modeling clay can be used instead)
• Large rubber band (not needed if using a battery holder)
• 2 large paperclips
• Pen or pencil

What You Do:

• To make a bundle, wrap each end of wire several times around the loops to hold them in place. Position the ends so they are directly across from each other and extending out in a straight line on either side of the bundle, to form an axle.  What you just made is called the armature.
• Hold the wire bundle you have made so that it would be flat against a wall, rather than a table, and color the top side of each wire end using the marker.  Leave the bottom side of each wire bare.
• Carefully bend each paperclip, forming a small loop by wrapping one end around a small object such as a pencil or pen.  Thick wire and pliers may be used instead of a paper clip if you want.  Be sure to use caution when using the pliers.
• If you are using a battery holder, attach a paper clip to either side, and insert the battery.  If you don't have a battery holder, wrap the rubber band tightly around the length of the battery.  Insert the paperclips so each one is touching one of the terminals, and they are securely held by the rubber band.  Attach the curved side of the battery firmly to a table or other flat surface using the clay or sticky tack. 
• Set one neodymium magnet on top of the battery, in the center.  Position the armature in the paper clip loops, with the shiny, uncolored side touching the paperclips. Make sure it doesn't touch the magnet.
• If your motor doesn't start immediately, try giving it a start by spinning the wire bundle.  Since the motor will only spin in one direction, try spinning it both ways. 
• If your motor still is not working, make sure that the paperclips are securely attached to the battery terminals.  You may also need to adjust the insulated wire so both ends are straight, and the bundle you have made is neat, with the wire ends directly opposite of each other.
• With the motor spinning, hold up the other magnet, above the armature.  As you move it closer, what happens? Turn the magnet over and try again to see what happens.