Treat a fold perforation as alternating cut segments and uncut bridges, kept separate from the outside contour of the card net. Work out the geometry first with an unpowered paper model. Use a laser process only when the actual card, coatings, and adhesives have documented compatibility; otherwise, use manual scoring.
LightBurn's official perforation tutorial, linked from its current Line Mode documentation and rechecked September 6, 2026, demonstrates the cut-and-skip concept for folds and tearaways. This is a continuing project need, not a claim that every cardstock is suitable for an A1 Mini.
Understand the repeating unit
For geometry alone, imagine a repeating pattern of 2 mm cut and 1 mm uncut. One cycle spans 3 mm, with two-thirds of that idealized cycle assigned to a cut. A 30 mm straight line contains ten such complete cycles. These figures illustrate arithmetic, not recommended A1 Mini settings, cut depth, or safe material parameters.
If the line is 31 mm long, a partial cycle remains at the end. Inspect where the pattern starts and finishes, especially near the outside contour or a corner. Two layouts with the same cut-to-skip ratio can have different bridge positions and different behavior when folded.
| A1 Mini card-net decision | Check before a powered sample |
|---|---|
| Material identity | Documented card and coating compatibility |
| Fold geometry | Cut sections alternate with intentional bridges |
| Outside contour | Independent operation, no accidental perforation |
| Net dimensions | Fit the actual usable area and hold-down arrangement |
| Unsupported material | Use manual scoring and cutting instead |
Make the box by hand first
Print a full-size paper proof with scale verified against a known dimension. Cut and crease it manually to check panel order, flap overlap, and the direction of each fold. This catches a wrongly placed hinge before any material-specific process evaluation.
The A1 Mini product page lists a 120 × 130 mm work area. A box's flat net can be much larger than the assembled box, so measure the complete unfolded shape. Leave room required by the actual supported setup; the listed area does not establish safe fixture clearance.
If the card is documented as suitable and the installed supported workflow provides perforation controls, keep the fold lines on an independently verified operation. Preview the interrupted path and outside boundary separately. Use material-specific validated settings and the machine's prescribed supervision and ventilation practices. A clean-looking test does not prove an unknown coating is safe.
After an approved-material sample is made, fold it in the intended direction and examine whether bridges tear, surfaces crack, or the fold wanders. A display box that opens once has different functional demands from packaging opened repeatedly. Decorative dashed borders solve an appearance problem and should not be treated as evidence of fold strength.
Is a longer cut segment always easier to fold?
It removes more continuity along the line, but can also encourage tearing. Bridge placement, card grain, thickness, and the intended fold all matter. Evaluate the actual documented-compatible material rather than selecting a ratio from appearance alone.
Can I perforate metallic, laminated, or adhesive-backed card if I lower power?
Do not infer suitability from lower power. Obtain documentation for the exact layered material and the intended laser process. If that information is unavailable, keep the laser off and make the fold with an appropriate manual scoring method.
