Design Guidelines
Injection Mold Rib and Boss Design Guide: Strength Without Sink Marks
Draft angle creates clearance as a molded part moves away from the core or cavity. The required draft depends on pull direction, wall depth,…
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Everything you need to know, all in one place. Our Knowledge Base covers materials, manufacturing processes, design guidelines, tolerances, and industry standards — giving engineers, designers, and buyers the technical reference they need to make informed decisions.
Our knowledge base is organized into five core categories covering everything from raw material selection to final inspection standards.
The articles our clients and engineering partners turn to most often when planning a new product development project.
Materials
A practical comparison framework covering mechanical properties, cost, and processability across the 17 most common engineering plastics.
Tolerances
What tolerance level is realistic for your part geometry and material, and when to specify tighter-than-standard tolerances.
Design Guidelines
Recommended wall thickness ranges by material family, and how uneven wall sections lead to warpage and sink marks.
Draft angle creates clearance as a molded part moves away from the core or cavity. The required draft depends on pull direction, wall depth,…
Ribs and bosses should add function without creating thick local masses. Good design connects stiffness, fastening, draft, flow, cooling, ejection, and assembly instead of…
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