The author shares their experiences working with different mold makers in China to create plastic injection molds for air quality monitors. They provide tips for designing plastic parts with mold suitability in mind, such as avoiding undercuts, changes in thickness, and 90 degree angles. They emphasize the importance of hiring a mold expert early on to review the design, suggest changes, and ensure a long-lasting mold. The author also discusses the business model of Chinese mold makers, the mold production process, and the importance of thoroughly testing T0 and T1 samples. Overall, they express satisfaction with their experiences and recommend consulting with a mold expert for successful mold making in China.
https://www.airgradient.com/blog/lessons-learned-plastic-injection-mold-making/