Galvanometric (Galvo) mirrors enable microsecond direction changes, but unlike Gantry systems that move the entire laser head, Galvo systems rely on a fixed distance where beam divergence can ruin your detail at the edges of the field.
Act I: The Bug
The "Fuzzy Corner" Problem (Galvo Systems)
Mirror Divergence5.0 mrad
Spot Growth
1.00 mm
Field Quality
Poor
The Failure: High divergence causes the beam to grow as it travels. In a Galvo system, the path to the center is shortest (sharpest), while the path to the corners is longer, allowing the beam to expand and become blurry.
Act II: The Fix
High-Fidelity Galvo Steering
Mirror Divergence1.5 mrad
Spot Growth
0.30 mm
Field Quality
Excellent
The Success: The xTool F2 achieves < 1.5 mrad. This ensures that even at the furthest reaches of the marking field, the IR spot remains identical to the center.