Richard and I performed some preventative maintenance on the laser cutter:

• Used windex to clean all the viewing ports
• Vacuumed all debris out of the bed
• Tightened up the head assembly belt and the set screws on the pulleys
• Cleaned the ways with WD-40, then lubricated with oil
• Oiled all bearings and bushings
• Removed broken key from front cabinet lock
• Cleaned mirrors and focal lens with optical wipes and alcohol
• Aligned mirrors