Prufi
PRU-013Heuristic screen

Deep narrow pocket

Machining

Scope and limits

Flag pocket-like cavities where depth/width > 4:1 (tool deflection risk).

Standards and references

No standards reference is assigned to this check. The scope described above applies.

STEP examples for this check

Geometry preview: Deep pocket with poor tool access

Machining · CC0-1.0

Deep pocket with poor tool access

Model example

The slot-like pocket is only 5 mm wide but 30 mm deep (6:1, limit 4:1). A long slender milling tool risks deflection and chatter. Its corners carry a 2 mm radius (a cutter-sized corner), so no sharp-corner finding is expected.

Dimensions (approx.): 30 × 50 × 35 mm

Expected check result

PRU-013 should warn once about the deep narrow pocket (worst depth/width 6:1 against the 4:1 limit) and nothing else.

Finding expected

PRU-013