How to Accurately Locate the Center of a Circle in CNC Projects?

When working with circular materials, the very first step is setting an accurate center coordinate. Whether you're using CNC milling, laser cutting, or 3D carving, even a slight deviation can result in off-centered designs or cumulative alignment errors. That’s why precise calibration is critical in any digital fabrication workflow.     Why Is the Center Coordinate So Important? Rotational or symmetric designs lose balance with center offset Symmetrical patterns may visibly shift to one side Misalignment in early steps leads to accuracy loss in later processes 3 Practical Ways to Find the Circle Center in CNC Work Manual 3-Point Edge Measurement — Mark three points on the edge, draw perpendicular bisectors, and find their intersection. Using a 3-Axis Touch Probe — Let your CNC machine scan edge points; software auto-calculates the center. Camera or Laser-Based Vision Systems — Use vision tools to detect the full cir...