Laying down the future

A 4m long, 3D printed pedestrian bridge is only one-tenth solid material, but it promises to last longer than traditional steel in marine environments and can even tell you when it needs maintenance.

Close-up of the PET/glass fibre structure making the bridge mostly air. Photo: CEAD

A 4m long, 3D printed pedestrian bridge is only one-tenth solid material, but it promises to last longer than traditional steel in marine environments and can even tell you when it needs maintenance.