Safety

Hazards: fumes, fire, noise, lacerations.
Wear hearing protection when the exhaust fan is on, as it's loud enough to cause hearing damage.
Check the debris tray before and after. Debris buildup can cause a fire as the laser cuts through the workpiece and enters the debris tray.
Do not cut unknown or unapproved materials. If the material is not on the approved list, ask for permission on Slack.
Heat can build up when doing multiple passes on wood, causing the material to ignite. If you're cutting thick wood and it doesn't go through in three passes, stop.
Always use a vector grid when cutting all the way through.
Don't wear loose hair, clothing, jewellery, etc. as they can become entangled in the belts.

Housekeeping

Clean the lens before the start of your session. Monitor the lens throughout - cutting messy materials like rubber may require recleaning
Break down waste before bagging (pieces should be smaller than 6" x 6"). Blunt any sharp edges so they don't break the bag.
There is a vacuum located by Big Red for your use.