Safety

Read this page before powering anything. This machine combines a Class 4 infrared laser, mains and possibly high-voltage electronics, and a vacuum vessel. None of these hazards is exotic, but their combination in a self-built machine demands deliberate engineering controls, not just care.

Laser (Class 4, 1064 nm — invisible)

Electrical

Vacuum

Interlock philosophy

Laser enable must be hardware-chained through: . Software may disable the laser but must never be the only thing preventing emission.