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Multi-Pass

Multi-pass repeats the cutting or engraving path multiple times, optionally stepping down in Z between passes. This is useful for thick materials or creating deeper engravings.

How It Works​

Each pass traces the same path again. With Z step-down enabled, the laser moves closer to the material between passes, progressively cutting deeper.

Settings​

Number of Passes​

How many times to repeat the entire step (1-100). Each pass follows the same path.

  • 1 pass: Single cut (default)
  • 2-3 passes: Common for medium-thick materials
  • 4+ passes: Very thick or hard materials

Z Step-Down per Pass​

Distance to lower the Z-axis between passes (0-50 mm). Only works if your machine has Z-axis control.

  • 0 mm: All passes at same depth (default)
  • Material thickness ÷ passes: Progressive depth cutting
  • Small increments (0.1-0.5mm): Fine control for deep engraving
Z-Axis Required

Z step-down only works with machines that have motorized Z-axis control. For machines without Z-axis, all passes occur at the same focus height.

When to Use Multi-Pass​

Cutting thick materials:

Multiple passes at the same depth often cut cleaner than a single slow pass. The first pass creates a kerf, and subsequent passes follow the same path more efficiently.

Deep engraving:

With Z step-down, you can carve deep relief patterns or engravings that would be impossible in a single pass.

Improved edge quality:

Multiple faster passes often produce cleaner edges than one slow pass, especially in materials that char easily.

Tips​

  • Start with 2-3 passes at your normal cutting speed
  • For thick materials, increase passes rather than slowing down
  • Enable Z step-down only if your machine supports it
  • Test on scrap material to find optimal pass count