# ⚡️Turning on the laser

1. Turn on the plug near the computer area  
      
    [![IMG_5246.JPG](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5246-jpg.jpeg)](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5246-jpg.jpeg)
2. The cooler should beep as it powers up. If it does not, check that the unit is switched on before proceeding.
3. Check the temperature displayed on the cooler behind the laser; it should be higher than (currently) 15°C. If not, do not use the laser. Also, check the temperature in the Hackspace: this should (currently) be greater than 15°C.  
      
    [![IMG_5248.JPG](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5248-jpg.jpeg)](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5248-jpg.jpeg)
4. Boot up the PC - password will be provided during your training
5. Turn on all the switches on the side of the laser: leave a gap between closing each switch to avoid tripping the circuits. Not all the LEDs in the switches are working.  
      
    [![IMG_5249.JPG](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5249-jpg.jpeg)](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5249-jpg.jpeg)
6. Switch on the camera monitor  
      
    [![IMG_5275.JPG](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5275-jpg.jpeg)](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5275-jpg.jpeg)
7. Insert the Safety Key and turn it to the on position - you will be told where the key is kept during your training  
      
    [![IMG_5250.JPG](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5250-jpg.jpeg)](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5250-jpg.jpeg)
8. Switch on the laser using the main dial switch and wait for the screen to finish booting  
      
    [![IMG_5276.JPG](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5276-jpg.jpeg)](https://wiki.leicesterhackspace.org.uk/uploads/images/gallery/2026-07/scaled-1680-/img-5276-jpg.jpeg)