The direct solution is to equip the printer with UV vision positioning. However, UV vision positioning has certain requirements for product flatness — it is not suitable for all products. For products with insufficient flatness, fixtures must be made. This depends on two factors: first, the quantity of the products, and second, the likelihood of repeat orders. If the quantity is small and the chance of repeat orders is low, it is recommended to use low-cost materials and simple machining to make the fixtures. If the product volume is large and repeat orders are Frequent, it is recommended to use high-density and higher-cost materials, as they will be more durable and less prone to deformation during use.