Draft Angles Are Critical for Consumer Electronics Molds

Draft angles are non-negotiable for consumer electronics enclosures. Without at least 1 to 2 degrees per side on vertical walls, the part will stick to the cavity and cause ejection failure. For textured surfaces, increase draft to 3 to 5 degrees to prevent scuffing.

The direction matters too. Always draft toward the parting line to avoid undercuts. For deep cores, add extra draft to reduce drag. Check corner radii—sharp corners increase stress and require more draft.

In multi-cavity tools, ensure consistent draft across all cavities to balance ejection forces. A simple 3-degree draft reduces ejection force by up to 30% compared to 1 degree. This prevents cracking in thin-walled enclosures.

Final tip: verify draft during design review with a simple angle measurement tool. Many molding issues trace back to insufficient draft. Apply this rule early to avoid costly tool modifications.

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