Protomold  Rapid Injection Molding

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Design Guidelines
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Frequently Asked Questions
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Sample Cube. Click here to get your free Rapid Injection Molding sample cube and illustrative key.

Design Guidelines

Because rapid injection molding is a true injection molding process, it shares many of the characteristics of traditional injection molding. Read on to learn more about general design requirements for injection molding and specific requirements for rapid injection molding.

General injection molding design tips

Since Protomold parts are injection molded, we desire all the basics of good injection molded part design. We lay out a few of the important points here:

Recommended wall thicknesses by resin type
Uniform wall thickness
Coring Out

Protomold Specific Design Guidelines

There are other things a designer should consider when designing parts for the Protomold manufacturing process:

Size limitations
Simple, straight-pull parts
Side action support for simple undercuts
The mold core-cavity approach
CNC milling considerations
Part ejection considerations
Part Radiusing and Draft

Miscellaneous

Once a part is submitted for a ProtoQuote, there are a few more things that must be chosen to place an order:

Choosing a resin
Choosing a surface finish
Resin information