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The biggest amount of work when producing fibre reinforced parts is the mould manufacturing. There are many ways to design and manufacture moulds, which all differ in material, cost, time and the process eco-friendliness.   Material  The common way when producing moulds is the use of polyurethane raw blocks with a density between 450 and 700 kg/m³. The material’s disadvantages are the weight and the price. For our solar car, the mould dimension of the main body alone is 50 ...