How to Build a Functional Prototype Test Plan Before You Commit to Tooling
Build a functional prototype test plan for fit, assembly, sealing, loads and critical risks before committing a plastic product design to injection mold tooling.
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Practical, step-by-step resources covering product design, DFM, prototyping, mold making, and injection molding. Each guide is developed to help engineers, product teams, and buyers understand key manufacturing decisions, identify common risks, and prepare projects more effectively for production.
Whether you’re sketching a first concept or troubleshooting a production run, start with the category that matches where you are in the product development journey.
These three guides provide a practical starting point for teams moving from product design through prototyping and mold development.
6 Steps
A step-by-step path from a napkin sketch to a fully toleranced 3D model ready for DFM review.
5 Steps
A decision framework for moving from 3D-printed prototype to low-volume molding to full production.
7 Steps
A first-timer's roadmap covering file requirements, quoting, DFM review, and the path to T1 samples.
Build a functional prototype test plan for fit, assembly, sealing, loads and critical risks before committing a plastic product design to injection mold tooling.
Read guide →Our guides cover the fundamentals — but every project is different. Talk
to our engineering team for advice tailored to your part.