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| 1 | +# Laser-cutting |
| 2 | + |
| 3 | +## Injuries due to laser light |
| 4 | + |
| 5 | +### Severity |
| 6 | + |
| 7 | +H |
| 8 | + |
| 9 | +### Likelihood |
| 10 | + |
| 11 | +L |
| 12 | + |
| 13 | +### Risk rating |
| 14 | + |
| 15 | +M |
| 16 | + |
| 17 | +### Who may be harmed & how |
| 18 | + |
| 19 | +- User - the user may have a minor burn or damage to the eyes due to the high power of the laser used for cutting |
| 20 | + |
| 21 | +### Control measures |
| 22 | + |
| 23 | +- Signage - standard "laser radiation" signage is used to indicate a dangerous laser is present |
| 24 | +- Training - informing the user about how to tell that the laser cutter and the laser is on and to properly operate the |
| 25 | + laser cutter |
| 26 | +- Equipment - opaque walls and a sheet blocking the laser wavelength covers the laser cutter, an interlock is installed |
| 27 | + turning off the laser cutter when lid is opened, first aid kit is available |
| 28 | + |
| 29 | +## Fire started due to substrate overheating |
| 30 | + |
| 31 | +### Severity |
| 32 | + |
| 33 | +H |
| 34 | + |
| 35 | +### Likelihood |
| 36 | + |
| 37 | +L |
| 38 | + |
| 39 | +### Risk rating |
| 40 | + |
| 41 | +M |
| 42 | + |
| 43 | +### Who may be harmed & how |
| 44 | + |
| 45 | +- The space - the equipment and surrounding area may become damaged from a fire started by a flammable material placed |
| 46 | + in the working area of the laser cutter |
| 47 | +- User - the user may become injured from a fire by both heat and inhalation of smoke |
| 48 | +- Bystanders - bystanders may become injured by both heat and inhalation of smoke |
| 49 | + |
| 50 | +### Control measures |
| 51 | + |
| 52 | +- Signage - standard "laser radiation" signage is used to indicate a dangerous laser is present |
| 53 | +- Training - users are instructed to not leave flammable materials in the working area of the laser cutter, users are |
| 54 | + trained on how to set appropriate laser power for different substrates |
| 55 | +- Supervision - active laser cutter is monitored during operation |
| 56 | +- Equipment - fire alarms and extinguishers are installed, first aid kit is available |
| 57 | + |
| 58 | +## Body part or clothing is caught in gantry |
| 59 | + |
| 60 | +### Severity |
| 61 | + |
| 62 | +L |
| 63 | + |
| 64 | +### Likelihood |
| 65 | + |
| 66 | +L |
| 67 | + |
| 68 | +### Risk rating |
| 69 | + |
| 70 | +L |
| 71 | + |
| 72 | +### Who may be harmed & how |
| 73 | + |
| 74 | +- User - the user may experience injuries such as cuts and stretch, crush, or pinch injuries |
| 75 | + |
| 76 | +### Control measures |
| 77 | + |
| 78 | +- Signage - standard "pinch point" or "crush hazard" signage is used to indicate the laser cutter is hazardous |
| 79 | +- Training - users are instructed to remove or secure loose clothing and long hair and to avoid placing hands near |
| 80 | + the laser cutter gantry mechanism |
| 81 | +- Equipment - the laser cutter is enclosed during operation, an interlock is installed |
| 82 | + turning off the laser cutter when lid is opened, first aid kit is available |
| 83 | + |
| 84 | +## Hazardous gasses |
| 85 | + |
| 86 | +### Severity |
| 87 | + |
| 88 | +M |
| 89 | + |
| 90 | +### Likelihood |
| 91 | + |
| 92 | +L |
| 93 | + |
| 94 | +### Risk rating |
| 95 | + |
| 96 | +L |
| 97 | + |
| 98 | +### Who may be harmed & how |
| 99 | + |
| 100 | +- Users of the room - anyone in the room may sustain injury from inhalation of hazardous gasses produced by heated |
| 101 | + substrates |
| 102 | + |
| 103 | +### Control measures |
| 104 | + |
| 105 | +- Enclosure - laser cutter is enclosed in a case to prevent hazardous gasses from escaping |
| 106 | +- Extraction - an extraction device is installed to extract hazardous gasses from the enclosure |
| 107 | +- Training - users are informed about which substrates produce hazardous gasses and to ensure the enclosure is closed |
| 108 | + and the extraction device operational |
| 109 | +- Equipment - an interlock is installed turning off the laser cutter when lid is opened |
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