Irregular-shape nesting / Curated layout archives

Every sheet nested along the true contour.

For J40 and H80, each case shows the real layout, the actual sheet count and the real area utilization. Every archived case was re-run three times with fixed parameters and returned the same sheet count.

Utilization = true polygon area of the parts / full area of the raw sheets used. Area lower bound = ⌈total part area / raw sheet area⌉; when the actual sheet count reaches this value the case is marked "provably optimal". Raw sheet 2250 × 3210 mm, with kerf, edge margin and break margin all set to 0 — a research configuration; on the production floor, enter the real spacings of your equipment.

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J40

86.84% Utilization

40 parts · 7 raw sheets

Provably optimal

Area lower bound: 7 sheets · three solves under fixed parameters gave the same sheet count

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H80

81.62% Utilization

80 parts · 10 raw sheets

Literature parity

Area lower bound: 9 sheets · three solves under fixed parameters gave the same sheet count

Matches the best published literature result (sheet-count metric).