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arXiv · 2609.05467

Hemispherical Ray-Casting Analysis for Milling Configuration Classification and Machinability Assessment

Serafeim Baltadouros·Joost R. Duflou·Bert Lauwers
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Abstract

Early-stage manufacturability assessment reduces design iterations and costly downstream changes. This paper presents a GPU-accelerated geometric analysis method that evaluates CNC machinability and setup requirements directly from CAD files. A multi-stage pipeline uses hemispherical ray-casting to quantify surface accessibility, followed by directional variability analysis to extract dominant machining axes. Threshold-based classification determines 3-axis versus multi-axis machining. For 3-axis parts, orthogonal ray-casting and reachability optimization compute the minimum setup count and explicitly flag inaccessible surfaces. Validation cases show computation times sufficiently short to support interactive CAD workflows, enabling quantitative manufacturability feedback during the design stage without requiring manufacturing expertise.

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Serafeim Baltadouros, Joost R. Duflou, Bert Lauwers. 2026-08-18. Hemispherical Ray-Casting Analysis for Milling Configuration Classification and Machinability Assessment. https://arxiv.org/abs/2609.05467

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