Laser cutting machines are mesmerising to watch in operation. It is a computer-guided process – data is inputted and the machine runs its course – known as computer numerical control (CNC). One of the many advantages of CNC is the ability to produce extremely accurate parts to precise tolerances.

Acrylic – poly methyl methacrylate (PMMA) – is ideally suited to laser cutting, scoring and engraving, because the heat of the laser produces a gloss finish. The scored lines appear to glow, an affect known as 'edge glow'. This is caused by light picked up on the surface of the sheet and transmitted out through the edges. The scoring acts like an edge and fluoresces in the same way, accentuated by the yellow tint.

Image: This pattern was designed by Ansel in Illustrator and scored (etched) using a CO2 laser. It is an adaptation of a similar design he produced for a streetwear collection by Vexed Generation.

A proud cyclist has customised their bike with fluorescent colours to make it more visible. The colour appears bright against the surroundings, because the surface is emitting light as a result of absorbing radiation.

Image: TU Delft, The Netherlands