How to Knit a Sports Car With Carbon Fiber

Replacing steel and aluminium in the factory

Bertha resides on a quiet industrial estate in Bristol, in the west of Britain. The affectionate name has been given to what at first appears to be a giant loom from the Industrial Revolution. And in some ways it is. Bertha is an automated braiding machine. Like a horizontal maypole, ribbons of carbon fibre are drawn…