Nesting is the art of arranging as many parts as possible on a single sheet — with minimal waste. For furniture makers, sign makers, and anyone processing sheet materials, nesting is the key to profitability.
What Is Nesting?
Nesting means optimally arranging multiple parts on a sheet of material to minimize waste. Think of it like a puzzle — fitting as many pieces as possible into the available space.
Manual vs. Automatic Nesting
- Manual: You arrange parts yourself in CAD — works for simple layouts
- Automatic: CNC Software optimizes placement — essential for complex or many parts
Why Nesting Matters
- Material savings: 10–30% less waste compared to manual arrangement
- Time savings: Process many parts in one setup
- Consistency: All parts from the same sheet = same material properties
- Automation: Load sheet, start program, remove parts — repeat
Nesting Requirements
Machine Requirements
- Travel range: At least half a standard sheet (1,250×1,000 mm or larger)
- Vacuum table: Nearly essential — mechanical clamping is impractical for nesting
- Dust extraction: Large chip volume during nesting operations
- Reliable zero-point: Consistent positioning is critical
Software Requirements
- Nesting module: VCarve Pro, Aspire, Fusion 360, or dedicated nesting software
- Features needed: Auto-rotation, part spacing, grain direction, onion skinning
Nesting Strategies
True Shape Nesting
Parts are rotated and arranged following their actual contour — maximum material utilization. Requires nesting software.
Rectangular Nesting
Parts are arranged in rows and columns based on their bounding box. Simpler but wastes more material. Suitable for rectangular parts.
Onion Skinning
Leave a thin layer (0.5–1 mm) at the bottom instead of cutting all the way through. Parts remain in place, are snapped out after milling. Eliminates the need for tabs.
Nesting Applications
| Industry | Typical Parts | Materials |
|---|---|---|
| Furniture making | Cabinet sides, shelves, backs, fronts | MDF, plywood, particle board |
| Sign making | Letters, shapes, multiple signs | Acrylic, Dibond, PVC foam |
| Packaging | Foam inserts, dividers | PE foam, PU foam |
| Shopfitting | Shelves, display elements | MDF, HPL, acrylic |
Practical Tips
- Part spacing: Leave at least 5–10 mm between parts (tool width + safety)
- Edge margins: Keep 10–20 mm from sheet edges (clamping/sealing area for vacuum)
- Grain direction: Mark parts that need specific grain orientation
- Tabs or onion skin: Parts must stay in place — choose your method
- Sacrificial board: Always use one under the sheet to protect the vacuum table
- Tool paths: Mill inner features first, then outer contours last
Nesting Software
| Software | Type | Cost | Notes |
|---|---|---|---|
| VCarve Pro | CAD/CAM + nesting | ~€700 | Good nesting, excellent for sign makers |
| Aspire | Full CAD/CAM + 3D + nesting | ~€2,000 | Professional all-in-one |
| Fusion 360 | CAD/CAM with nesting extension | Free/paid | Nesting in paid plans |
| DeepNest | Dedicated nesting optimizer | Free (open source) | True shape nesting, DXF based |
FAQ — Frequently Asked Questions
Do I need a vacuum table for nesting?
Strongly recommended. Mechanical clamping is impractical when the entire sheet is covered with parts. Some users use screws in the waste area, but vacuum is the professional solution.
How much material can nesting save?
Typically 10–30% compared to manual arrangement. For irregularly shaped parts, the savings can be even higher.
Can I nest different-thickness parts?
Not in the same run — all parts must be from the same sheet thickness. You can do multiple nesting runs for different thicknesses.
Conclusion: Nesting Pays for Itself
For anyone regularly processing sheet materials, nesting is not optional — it is essential. The material savings alone pay for the software investment within weeks. Add the time savings from batch processing, and nesting becomes one of the best productivity investments you can make.
Need a machine for nesting? Our PFU-S and PFG-S series are designed for sheet processing with vacuum table option.
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