AMT + Crispin: How AMT and HP enable durable, colorful, and patient-friendly devices

My name is Ellen Parry, R\&D Manager for AM Healthcare, parent company of Crispin Orthotics, our 3D printing brand. We use 3D printing for end-use prosthetic and orthotic products with five MJF machines—four PA 12 and one TPU—and vapor smoothing from AMT as an integral part of our process. We print in PA 12 white, which once smoothed provides a perfect canvas for color. We produce pediatric and adult devices, and customization with bright colors is popular among pediatric patients. Vapor smoothing gives a nicer surface finish, allowing us to eliminate lining, making manufacturing more efficient and improving durability. It seals parts for easier cleaning and better patient experience. We plan to run TPU on new machines and use vapor smoothing for TPU products. We’ve invested in AMT’s DP and SB machines to automate PA 12 post-processing and keep vapor smoothing for TPU. Sam Martin from AMT adds that AMT is dedicated to automated post-processing, including vapor smoothing, depowdering, and surface blasting. In 2025, AMT announced the PostPro Unpack for automated unpacking, expanding our portfolio.