Laser Cutting Optimization Guide
Laser cutting offers a very narrow kerf and high precision, which makes tight nesting especially rewarding: parts can sit close together and yields can be high. Optimizing a laser job means packing parts efficiently, accounting for the small but real kerf, and ordering cuts to save both material and machine time.
Account for the laser kerf
A laser kerf is small — often around 0.1–0.5 mm depending on material and thickness — but it still removes material along every cut line. For tight-tolerance parts, the optimizer should offset for half the kerf on each side so finished dimensions are exact.
Nest parts tightly
- Rotate parts to fill the sheet where the material has no grain.
- Use true-shape nesting so irregular parts interlock.
- Place small parts in the gaps left by larger ones.
- Combine multiple jobs onto one sheet to raise yield.
Common-line cutting
When two straight part edges align, a single cut can serve both, a technique called common-line cutting. It removes a whole cut line between parts, saving both material (one kerf instead of two) and cutting time. It works best on rectangular parts laid edge to edge.
Order cuts to protect parts
Cut interior features before outer profiles so parts stay anchored to the sheet while detail work happens. Plan lead-ins and the cut sequence to reduce heat distortion on thin material and to keep small parts from tipping into the cut path.
Frequently asked questions
How big is a laser kerf?
It depends on the material and thickness but is typically about 0.1–0.5 mm — much narrower than a saw blade, which is why laser nesting can be very tight.
What is common-line cutting?
It is sharing one cut line between two adjacent parts so the laser cuts the shared edge once, saving material and time.
Put this into practice
Plan tighter layouts and cut less waste with the free CutList Machine optimizer.
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