NestClass Benchmark Report: Speed & Utilization

Real performance numbers from the NestClass V2 engine running production-grade nesting scenarios on standard 4×8 ft (2440×1220mm) sheet stock.

Test Methodology

All benchmarks run on the production engine with 5 optimization iterations, kerf width of 3.2mm, and edge margin of 5mm. Results are deterministic — same input always produces same output. Compute times measured wall-clock on production server hardware.

Results

Key Findings

Speed scales with part count, not sheet size. An 8-part job on large sheets completes in under a second. A 130-part production run completes in 4 seconds. Even the 500-part stress test (all unique dimensions) finishes in 17 seconds.

Utilization improves with part diversity. Mixed-size jobs (like the stress test with 500 unique parts) achieve higher utilization because the engine can fill gaps with smaller parts. Single-size jobs are harder to optimize.

Admissibility scoring prevents dead space. The field-based scoring system ensures placements don't create narrow channels or trapped pockets that waste material on subsequent parts.

How to Read These Numbers

Utilization percentage is total part area divided by total sheet area used. A 67% utilization on 3 sheets means 33% of the sheet area is waste — but this includes kerf gaps, edge margins, and the inherent inefficiency of fitting rectangular parts into a finite space. For comparison, manual layouts on the same jobs typically achieve 45-55% utilization.