Does your school have a dangerous laser cutter?

[Mandatory] – Safety interlocks on doors:
Laser radiation/eye exposure

  • Interlocks/sensors must be connected to the lid/door of the laser system, which immediately stop the laser firing when the lid is opened.
  • Interlocks must also be on any material pass-through doors/options.
  • There must not be a switch that permanently bypasses these interlocks.

[Mandatory] – Electrical safety:
Electrical shock

  • Any panels on the back or sides of the laser system that accesses dangerous voltage or the laser source, must only be accessed by use of a tool or key. Refer AS 60204.1-2005 section 6.2.2 (a).
  • Ensure that there is no open access to any electrical terminals which may carry dangerous voltages. Typical areas for these terminals may be behind the control panel or exposed laser tube. Refer AS 60204.1-2005 section 6.2.

[Mandatory] – Emergency stop button:
Fire and general safety

  • A large, highly visible emergency stop button must be located within easy reach, mostly near the control panel. When pressed, the button immediately shuts down the laser source and motion system. Refer AS 60204.1-2005 section

[Mandatory] – Key lock:
Protection against unauthorised use

  • To safe guard against unauthorised use or operation without supervision. Laser source will not operate unless key is inserted and turned on.

[Mandatory] – Safety signage:
User awareness

  • Warning not to use materials that may produce toxic gases eg. PVC and Teflon.
  • Warning to avoid eye exposure.
  • Warning not to use laser without teacher supervision.
  • Warning not to leave laser unattended while in operation.

[Highly Recommended] – Filtered glass lid:
Laser radiation/eye exposure

  • Filtered lid that protects users from the 10600nm infrared wavelength (Co2 laser).
  • Preferred if lid has an OD (optical density) rating, which measures the ‘tinting’ the lid provides.
  • Preferred if lid is tempered glass rather than acrylic, as the glass will be more durable and protective in the case of a fire.

[Highly recommend] – Heat Detection & Fire Suppression System
Safety & property protection

The primary method for preventing a fire in your laser cutter is the constant operator supervision of the laser when in use. However, in the typical classroom situation distractions are common and a backup automatic fire suppression is essential.


  • Increased operational safety, including protection against machine damage and surrounding property.
  • Reduces the chance of downtime and need for costly repairs, which inevitably occurs when a fire continues.
  1. Heat detection
  2. Response – laser stops, extraction port closes & alarm sounds.
  3. Solution – fire suppressant released into cabinet of the laser.

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