Lasers
So, CO2 Lasers: Exciting! Also, dangerous.
Only safety-conscious adults should operate lasers of any kind.
Below are links to some VERY helpful videos from a gentleman named Russ, who purchased a laser engraver very similar to ours. In these videos, he shares his experiences, advice, and safety tips.
Part 1: Introduction to Laser Cutting: http://youtu.be/YvrMeUUzaBo
Part 2: Laser Theory and Safety Issues: http://youtu.be/zF9nQHlvGkc
Part 3: Software (n/a for Hyrel users): http://youtu.be/SGD8BPZntxY
Part 4: Initial Setup and Powerup: http://youtu.be/fA1jM9hTk6s
Part 5: Test Prints http://youtu.be/Zcze9B0BmpA
Part 6: Focal Distance and Power Analysis: http://youtu.be/PUdEUxJH2_o
Part 7: Modifications and Recommendations from a Year of Use: https://www.youtube.com/watch?v=GNV0JUJXdvk
Part 8: How to Realign your Mirrors: https://www.youtube.com/watch?v=Vl6QKlwRKlk