Nesting Identical Parts in Vectric Aspire for Large CNC Runs
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Running 200 identical peaks (or any large batch) by hand is a nightmare. Aspire's nesting tool packs parts automatically, maximizing material yield and cutting run time significantly.
Why Nesting Matters
Without nesting: manually place parts, waste material, miss yield opportunities With nesting: Aspire auto-packs parts at optimal spacing, rotates if needed, minimizes waste
For 200 peaks at 45×118mm on a 400×400mm work area: approximately 6 parts per sheet = 34 sheets. Nesting can get you 7–8 per sheet = 25–28 sheets. That's a meaningful saving.
Setting Up the Nest
- Draw or import your part — the peak profile as a closed vector
- Toolpaths first — set up your profile cut toolpath on the single part
- Gadgets → Nesting (Aspire 10+) or Job Setup → Nesting
- Set parameters:
| Setting | Value for Peaks |
|---|---|
| Sheet size | 390 × 390mm (leave 5mm border) |
| Part spacing | 5mm (tab clearance) |
| Border gap | 10mm |
| Allow rotation | Yes (90° increments for rectangular parts) |
| Parts to nest | 200 (or per sheet count) |
- Click Calculate Nesting
- Preview — verify spacing looks correct
- Export toolpath per sheet
Workflow for Multi-Sheet Runs
- Set work zero once — bottom-left corner of spoilboard
- Use same zero for every sheet (don't re-zero)
- Nest output gives you a toolpath file per sheet quantity
- Run sheet 1, remove parts (cut tabs), load sheet 2, repeat
- Keep tabs consistent — 2 tabs per part, same size, same position
Tab Settings for Nesting
- Tab width: 4mm
- Tab height: 1.5mm (leaves thin skin)
- Tab placement: middle of each long edge
- Aspire places tabs automatically based on your toolpath settings
Saving Time on 200 Parts
| Step | Time saved |
|---|---|
| Auto-nesting vs manual | 2–3 hrs layout time eliminated |
| Optimized yield (7 vs 6/sheet) | ~5 fewer sheets = ~2 hrs machine time |
| Consistent zero across sheets | No re-zeroing = 5 min/sheet saved |
| Total estimated saving | 4–5 hours on a 200-part run |
Tips
- Dry run first — run air above material on first sheet to verify paths
- Identical material thickness across all sheets — height varies = depth varies
- Same bit throughout — changing bits mid-run requires re-depth-calibration
- Keep a log — mark each sheet as run, track which parts cut clean vs needed re-cut