Machining Enhancements

Machining Design Guidance

In this release of aP Pro, the (secondary) Machining, 2-Model Machining, and Stock Machining process groups now provide severity-based manufacturability design guidance for most processes. When you use the latest manufacturing process model versions (Machining CMV 380, 2-Model Machining CMV 130, Stock Machining CMV 220), design issues are now classified as Critical, Major, or Minor, enabling you to easily identify the most important issues to address. You can also tailor guidance to your own design standards by adjusting any issue type's severity classifications or associated thresholds.

This enhancement extends the Critical, Major, and Minor severity framework introduced in aP Pro 2025 R1 SP3. For more information, see the aP Pro 2025 R1 SP3 Release Notes. This brings the number of process groups that provide prioritized guidance to six: Forging, Machining, 2-Model Machining, Stock Machining, Plastic Molding, and Sheet Metal. Upcoming releases will provide this enhanced guidance in additional process groups.

The following categories of machining rules now provide prioritized design guidance:

  • Access and Setup Constraints

    Tool accessibility and setup feasibility issues now supply severity thresholds, enabling clearer identification of conditions that might prevent or significantly complicate machining operations.

  • Obstruction and Geometry Detection

    Detection of geometric obstructions and interfering features improves the reliability of manufacturability assessments. Issues are classified based on the level of impact to machining feasibility.

  • Ratio and Tooling Constraints

    Length-to-diameter ratios, depth constraints, and other tooling limitations have been aligned to severity-based classifications. This provides clearer differentiation between high-risk tooling conditions and lower-priority design optimizations.

  • Hole and Turning-Specific Improvements

    Hole-making and turning operations have been updated with refined rule logic and severity classification to better reflect real machining constraints and best practices.

This release also includes expanded validation logic to improve the accuracy and relevance of manufacturability feedback. The following machining-related defect has been resolved:

  • Surfaces incorrectly flagged as Side Milling L/D Ratio Exceeded:

    • Improved detection logic eliminates false positives.

    • Increases confidence in reported manufacturability violations and reduces unnecessary design review effort.

Notes and Limitations

  • In Machining, a small number of rules are not yet migrated to the severity-based framework. As a result, a very small selection of issues may appear as Unclassified. Additional rule conversions and enhancements are planned for upcoming releases.

  • In Stock Machining, six design guidance issues related to selecting alternate (smaller) stock sizes are displayed as Unclassified in this release, but will be categorized as cost-driving issues in a future release.