To shut things down:
Please read about the ventilation system.
Laser cutters are expensive and dangerous. Do not leave it unattended. Things can and will start on fire. You don't want that on your head now, do you? I mean, come on.
You can etch/cut various materials. Cut: paper, acrylic, plastic. Etch: wood, acrylic, plastic, etc. (For more in-depth info, see the manual.)
Some great info from Lady Ada: http://www.ladyada.net/library/laser/
JasonG will run a training on the laser from noon - 3pm on Saturday, April 12, 2014.
If you want to attend, sign up here.
Don't have barcode reader? Click here.