
Laser diode driver
These are the components that can be used:
1x LM317
2x 10 ohms resistors
1x 1N4001 diode
1x 10uF capacitor
1x button switch (optional)
When I tried mine the current flowing is 240 milliamps, and it gets hot so I put a temporary heatsink because I really want to make it burn things but I have not yet get the right lens that needed to focus so it could burn something. My laser came from a cheap DVD burner that I had to bought because I only have CDRW and DVD reader. But I am pretty sure it could burn something like in a McGyver episodes. Save your broken electronics and it can be reuse to something that makes you McGyver that tinkers anything in his surroundings.
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