Ribs and bosses are essential features in plastic part design. They add strength, support, and help with assembly — but if not designed correctly, they can lead to cosmetic defects, weak joints, and mold complications. Goodtech MFG help you balance structural strength and cosmetic quality. Our engineering team reviews your 3D models and provides DFM reports, rib/boss optimization, and mold flow simulation support.

At Goodtech MFG Group, we support engineers with Design for Manufacturability (DFM) feedback, including draft analysis. Our team helps you: • Detect undercut or zero-draft issues • Suggest ideal draft for your material and finish • Avoid rework and tooling changes

What Is the Best Wall Thickness for Injection Molded Plastic Parts? When designing plastic parts for injection molding, one of the most critical decisions a mechanical engineer must make is choosing the right wall thickness. Wall thickness affects part strength, manufacturability, cycle time, and cost — and poor choices often lead to defects like warping, sink marks, or short shots.

How to eliminate the shrink marks? 1. Design change 2. Mold improvement 3. molding parameters adjustment 4. material selection

The mold finish directly affects the aesthetic quality, texture, and functionality of the molded parts. A high-polish finish (A-grade) is crucial for parts that require a smooth, glossy surface, while a textured finish (D-grade) is important for grip or tactile features.