2Sneaky4You | How to Make a Weapons Grade Laser ( Class IV 2000mW Laser Tutorial - PLTB450B ) @2Sneaky4You | Uploaded January 2018 | Updated October 2024, 6 minutes ago.
I built a powerful, burning laser!
In this video I show how to make a laser driver PCB to power a laser diode.

8000mW Laser Gun: youtu.be/28qhg2BxN3M
Laser Death Star (from this video): youtu.be/7tBjQNKmrDA

I've been working on this laser for weeks, but couldn't find the time to complete it.

This is an approximately 2000mW 450nm laser that I built from scratch into my own aluminium housing. Wavelength: 445 - 450 nm ( Blue )

Laser Diode: Osram PLTB450B
Voltage & Current Regulator Chip: LM317
For higher power use LM338

Parts can be bought online, some parts at jaycar and radioshack etc.

To build your own laser driver, use:
reuk.co.uk/wordpress/electric-circuit/lm317-voltage-calculator
reuk.co.uk/wordpress/electric-circuit/lm317-current-calculator

PLEASE USE SAFETY GOGGLES WITH HIGH-POWERED LASERS!
Do not shine lasers at planes, cars or people!