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Available for over a year

Peter Day takes a close look at the progress of 3D printing in manufacturing 5 years on from the first programme he made about this new way of making things. Back then there was much hype and excitement about its potential to revolutionise traditional manufacturing. From aircraft parts to cartilage in knees, Peter discovers 3D printing's current range and uses and asks whether it's really lived up to its early promise. Producer: Caroline Bayley.