Injection Mold Design Guide -

Injection Mold Design Guide

Next Steps:

The mold opens and mechanical pins push the finished part out. 2. Fundamental Part Design Rules injection mold design guide

Design Rules for Ribs:

• Base radius: Add a radius (R = 0.25x to 0.5x thickness) at the base of the rib to reduce stress concentration.
• Height: Maximum height = 3x the rib thickness.
• The 60% Rule: A rib’s thickness should be 60% of the nominal wall thickness to prevent sink on the opposite side.