Abstract: An additive layer manufacturing apparatus comprising a doctor blade (57) having a tip (51) which, in use, is arranged proximal to a material layer (59) to be recoated during an additive layer manufacturing method, the doctor blade (57) having a cavity (50) with an inlet and an outlet, the outlet located at the tip (51) and the inlet connectable to an air supply (53) whereby air can be directed through the cavity (50) to the outlet and onto a surface (59a) of the material layer (59).
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