Get a ProtoQuote®
Bookmark and Share
Design Guidelines
Injection Mold Design Guidelines - The mold core-cavity approach

Consider core-cavity approaches when possible

As an alternative to deep ribs, consider using the illustrated type of core-cavity approach to produce a similar geometry.

This mold will be faster and less expensive to manufacture, and the quality of the final part will be improved (polishing is much easier on core-cavity geometries than down inside deep ribs).

Injection Mold Design Guidelines - The mold core-cavity approach
Deep Rib Approach
Box designed with walls as ribs. Higher cost to machine and polish cavity.
Core Cavity Approach
Box designed thru core-cavity method. Can get to features with bigger faster cutter. Easier and faster to polish.


The Protomold Process | Prototyping Processes | Designing for Moldability | Design Guidelines | Material Selection | Applications And Pricing | Frequently Asked Questions | Case Studies | Customer Testimonials | Journal Magazine | Design Tips e-Newsletter | Glossary | Links
Home | Resources | Company | Contact Us