First i have a back ground in lasers so i will dispense some wisdom that is not conventional, it comes from me actually questioning my laser professor in college.
i will show you how to turn a your favorite pen into a burning laser using recycled parts.
i an not the best at spelling so if you want to leave a comment i will try to fix it in a speedy manor.
Step 1: Gather materials
2.a broken mechanical pencile
3.1 watt fiber coupled diode laser, go to ebay they are second hand from the computer industry that's the equivalent to 500 small laser pointers
4.scrap wood and dowels for case, wood an excellent static shield
5.old computer hear sink and thermal gees
6. some wire
7.1 resister use omes law and spec sheet to figure it out mine is 0.39 ohm 2W resister. your diode might need a different size do not use variable resisters ever. ill expane why latter.
8. 8 small screws
9.1 bolt end cap
10. aa battery holder for 2 batteries
11. finally one big red button that screams push me