Newbie: How do I modify a laser pointer's button into knife switch(connected to...) ?

[Elektr0n3Ro9000]

I'm having a trouble of how modify a laser pointer button. i want to turn it into a knife switch for my experiment. I will be doing a preliminary dissection on a simple 1mW laser pointer because I plan to do that green laser 100mW (which doesn't come cheap in my country). Can you guys show me how to do it? and also I want to connect it to a power source (modified from batteries). Thanks.

 

[Cyparagon]

It's easier to do when the button is on the end, rather than the side. Just put the knife switch where the button switch used to be. (electrically, not physically)

 

[Elektr0n3Ro9000]

the laser i'm first using is just 1mW *so that when i do it on 100mW i could successfully do it*. it's button is on the side. I dont know how to connect it. i'm doing this physically, but i want it working..

 

[Cyparagon]

Well that's kinda like saying you're going to practice putting a door on a microwave oven so you get practice for when you put a door on your car.