C_SHEET — Sheet Metal DFM¶

Trigger: Activated by the selected manufacturing process Rules in pack: 20

Bend, flange, relief, and flat-pattern manufacturability checks.

Distribution Inside This Pack¶

Severity	Rules
major	20

Logic type	Rules
Deterministic	19
Hybrid	1

Applies to	Rules
CAD sheet metal	20
CAD bend feature	6
CAD hole feature	3

Rules¶

Rule	Title	Severity	Logic	Applies to	References
`SM-001`	Min flange length ≥ 4× thickness	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-002`	Prefer consistent bend radii across bends (tooling reuse)	major	Deterministic	CAD sheet metal, CAD bend feature	`REF-SM-1`
`SM-003`	Hole/slot diameter ≥ material thickness	major	Deterministic	CAD sheet metal, CAD hole feature	`REF-SM-1`
`SM-004`	Hole-to-edge distance: enforce guideline thresholds (distortion risk)	major	Deterministic	CAD sheet metal, CAD hole feature	`REF-SM-1`
`SM-005`	Hole-to-bend proximity: flag distortion-prone features	major	Deterministic	CAD sheet metal, CAD bend feature, CAD hole feature	`REF-SM-1`
`SM-006`	Tabs: width ≥ 2×t (or ≥ 3	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-007`	Notches: width ≥ t (or ≥ 1	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-008`	Countersink angles limited to standard angles	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-009`	Formed countersink tolerances looser	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-010`	Bend angle tolerance expectation ±1°	major	Deterministic	CAD sheet metal, CAD bend feature	`REF-SM-1`
`SM-011`	Multi-bend stack-up: flag tight across-bend tolerances	major	Deterministic	CAD sheet metal, CAD bend feature	`REF-SM-1`
`SM-012`	Hem design: check minimum inside diameter and return length vs thickness	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-013`	Offset features: flag very small offsets likely to be inconsistent	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-014`	Hardware inserts spacing: enforce manufacturer spec placeholder requirement	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-015`	Edge burr control note present (deburr, edge break)	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-016`	Consistent thickness per part	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-017`	Laser cut internal corners: suggest radii to reduce crack initiation	major	Hybrid	CAD sheet metal	`REF-SM-1`
`SM-018`	Small formed part sizes below guideline risk handling issues	major	Deterministic	CAD sheet metal	`REF-SM-1`
`SM-019`	Very long bends near max envelope: flag handling/deflection risk	major	Deterministic	CAD sheet metal, CAD bend feature	`REF-SM-1`
`SM-020`	Prefer symmetric bend layout to reduce twist/warp	major	Deterministic	CAD sheet metal, CAD bend feature	`REF-SM-1`

Sources¶

D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\manifest.json
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\rule_library.json
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\references.json
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\process_classifier.json
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\overlays.json
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\roles.json
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\report_templates.json
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\ui_bindings.json