Standard practice in the industry is to require a down-payment, which ideally would arrive with the purchase order and final CAD file. Our terms are 50% with PO, 40% on delivery and 10% on approval. The down-payment covers the costs the mould maker incurs in the first half of the mould building process. The 40% on delivery protects the mould maker from a long part approval process by the customer. The 10% on approval protects the customer’s interest.