Design Aids

Learn about the design elements, materials, and surface finishes of injection-moulded parts by registering for our free design aids.

Design Cube

One of the best ways to learn about our injection moulding process is to have an actual plastic part in your hands to explore. That’s why we created the Design Cube, which shows part features that are too thin or too thick, bad bosses, right and wrong ribs, and other considerations to be mindful of while designing parts for injection moulding.

Resin Puzzle

The Resin Puzzle includes real samples of nine widely-used resins that cover a broad range of applications. Register today to receive your free Resin Puzzle. Assembly, however, is required (and good luck with that)required (and good luck with that)

Demo Mould

This design aid shows the mechanics of how the A-Side and B-Side of a tool work together during the injection moulding process to create plastic parts. The Demo Mould demonstrates the functionality of side-actions, sprues and runners, ejector pins and plates, and the relationship between core and cavity. It helps those new to injection moulding easily visualise the process and is a great teaching device for educators


The Torus is filled with complexities: bayonets, text on ribs, gears, bump-offs, clip cams, and more. We created this design aid to illustrate that intricate part features can still be achieved through rapid manufacturing processes. The Torus has a trio of interconnected sections, each highlighting features that serve various purposes in part design.


3DP Material Selector

Our pocket-sized Material Selector is a quick reference guide to help you identify the right thermoplastic-like and metal materials for your next 3D printing project. It lists specific measurements like resolution, tensile strength and hardness to ensure you have the most suitable material and additive manufacturing process for your part’s application.

Digital Manufacturing for Dummies

Our comprehensive book is an essential guide to the major 3D printing, CNC machining and injection moulding technologies that are frequently used in digital manufacturing. Compare processes, explore material options and find out how digital manufacturing can fit into every stage of the product life cycle. At Protolabs we use advanced software and manufacturing automation to produce custom prototypes and low-volume production parts from 3D CAD models.

Design Essentials for Injection Moulding

We’ve compiled a collection of design tips aimed at improving the mouldability of your parts. Learn about injection moulding materials, surface finish options, incorporating draft, avoiding sink, and many other design considerations. It's a valuable resource that can potentially save you development time and production cost.

Design Essentials
Design to Prototype

We’ve compiled a collection of design tips aimed at supporting you through the early stages of your design process. Learn more about our Design for Manufacturability software, CAD files, application engineers, prototyping processes and selecting your material. It’s a valuable resource that can support you through the early design process.