How to Make a Laser Pointer

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Materials:

1.Plastic tube

2.Wire

3.Push button

4.Laser diode

5.Button cell batteries

6.Spring

Step 1.

Hollow out he empty tube and remove the end

Step 2.

Get a drillbit a bit smaller than a diode

And then drill hole in the cap

Now the diode should fit sung

Or you may need to add glue

Step 4.

Bend the pins on the push button flat

Step 5.

Cut a groove in the tube for the whire

Step 6.

Attach the negative wire to one side

Attach the negative wire of the diode to the push button as well

Attach the positive wire of the diode to the spring

the whole circuit should be similar like this

Step 7.

Put the batteries on the tube and put cap on

Step 8.

Tick the wire under the batery(negative side)

And Thats all you are ready to go

How to make