Prufi
PRU-250Declared input

Powder coating access needs review

Machining · Sheet metal · Casting · Additive manufacturing · Hot-dip galvanizing

Scope and limits

Exact material-intersection screen from declared gun points to selected planar face-interior points on one valid solid. INFO when no clear front-facing segment exists. Sealed-cavity gun positions excluded. This is not a powder-transport, electric-field, gun-body, full-face or coating-quality prediction.

Standards and references

POWDER-ACCESS-MASK-2026

Protolabs Network powder-coating design and Protolabs sheet-metal masking guidance

Source scope
Declared pre-coating geometry, target points, gun positions and explicitly required uncoated faces.
Implementation in Prufi
Supplier recommends gun line of sight and explicit masking of mating/tapped regions; Protolabs finishing guidance requires drawing locations for masks/plugs. PRU250 screens exact selected-point visibility; PRU251 checks declared mask-plan coverage only. Nordson documents powder wrap and process-dependent recess coverage, so occlusion is INFO, never proof that coating is impossible. Sources and limits in coating-plan-v4 research ledger.

STEP examples for this check

No public STEP example is currently assigned to this check.

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