How to Approve a Molded Fiber Packaging Prototype Before Mass Production
A molded-fiber prototype can look correct and still be the wrong sample to approve. A 3D-printed model may validate geometry but not fiber shrinkage, moisture response, surface, or production tolerance. A hand-finished tool-trial sample may show manufacturing potential but not production variation. One ideal first article may fit while other parts across the expected tolerance range do not. Prototype approval should therefore answer three separate questions: Is the geometry correct for the product, packaging system, and user? Can the intended material, tooling, and manufacturing process......
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