3D printing is not a one-size-fits-all solution for product design problems. It comes with certain challenges and limitations that must be taken into account, such as cost, skills, and regulations. The cost of 3D printing depends on the type, size, and complexity of the product. You must also invest in a 3D printer, materials, software, and maintenance. Furthermore, technical skills and knowledge are needed to operate and maintain the 3D printer, design and optimize the CAD file, and troubleshoot any issues. It may be necessary to hire or train staff or collaborate with experts to ensure quality and efficiency. Additionally, you may need to comply with safety, environmental, intellectual property, and quality standards or certifications. You also need to protect your product design from piracy, counterfeiting, or misuse. Comparing the cost-effectiveness of 3D printing with other methods such as outsourcing or mass production should also be taken into consideration.