Focus Test: Find the Best Focus Instead of Guessing

Why this matters

Use LightBurn's Focus Test on supported setups to compare focus positions systematically before committing to production settings.

How it works

• Focus Test is part of LightBurn's Laser Tools for evaluating focus-related behavior.
• Focus strongly affects spot size, engraving detail and cutting energy density.
• Automatic focus or Z-based workflows require hardware support and correct machine configuration.

Practical workflow

1. Prepare a consistent piece of the real material.
2. Confirm the machine's focusing mechanism and Z behavior are known and safe.
3. Run the test across a sensible focus range.
4. Inspect line quality or cut result instead of choosing only the darkest mark.
5. Record the selected focus together with material thickness and machine profile.

What to watch for

• Focus settings are not transferable between machines with different lenses or mechanics.
• An automated Z move can collide if material height or clearance is wrong.
• Best engraving focus and best deep-cut focus may not be identical goals.