Prufi
PRU-087Heuristic screen

Loose pieces inside cutouts

Sheet metal · Laser cutting · Plasma cutting · Flame cutting

Scope and limits

Loose coplanar plate lying completely inside a cutout of another plate (letter counters, plugs): falls out or tips into the head unless a micro-joint remains. Sources: eMDe Blechfabrik, GL-Laser, Wattsan.

Standards and references

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

STEP examples for this check

Geometry preview: Loose plug inside a cutout

Laser cutting · CC0-1.0

Loose plug inside a cutout

Model example

A 28 × 18 mm plug lies loose inside a 30 × 20 mm cutout of the same 3 mm plate (like a letter counter). Once its contour is cut it falls through the slats or tips into the head.

Dimensions (approx.): 100 × 80 × 3 mm

Expected check result

PRU-087 should flag the loose plug once and nothing else: the second body is the plug itself, so the generic multiple-bodies note PRU-042 stays silent (same cause).

Finding expected

PRU-087

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