Expert. Renata is a ‘clipper’ and sits at the end of a conveyor belt. Her job is to clip the trusses to the right proportions. An average truss weighs 700 grams. The machine has to provide portions of one kilo. Renata estimates the weights and collects and clips the portions to the correct total weight, after which the machine takes over. Her job is quite uncommon in an industry in which just about everything is automated.