Using laser spirit levels to determine whether walls and other surfaces are truly horizontal or vertical.

Explains laser classification and hazards. Describes the  lasers that are permitted in school and the range of relevant practical work. Also desribes common devices which use lasers and how they might be used in school. Finally, describes the classification and uses of modern, bright LEDs.

Use of a high-power laser to cut plastics, rubber, wood, card and textiles under computer control as an example of CAD / CAM.

This gives the instructions for making the many of the component parts and assembling the cabinet. It is accompanied by CAD files for use on a laser cutter and 3D printer to produce those components. Some parts have to be purchaased and some can be either 3D  printed or purchased.