CNC

CNC Machining Complete Guide

Everything you need to know about CNC machining, from basics to advanced techniques and tolerances. Learn how to make precision parts with CNC milling and turning.

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CNC Machining Processes

Discover the different CNC machining processes and their specific applications for precision parts.

CNC Milling

Subtractive machining for complex 3D shapes.

  • 3-axis milling
  • 4-axis milling
  • 5-axis milling
  • Complex geometries

CNC Turning

Rotary machining for cylindrical parts.

  • Shafts and rods
  • Cylinders
  • Bushings
  • High precision

Multi-Axis

Advanced machining for complex parts.

  • Simultaneous axes
  • Undercuts
  • Screw shapes
  • Complex angles

CNC Tolerance Guide

Machining TypeStandard ToleranceHigh PrecisionSurface Roughness
3-Axis Milling±0.1 mm±0.02 mmRa 1.6 μm
5-Axis Milling±0.05 mm±0.01 mmRa 0.8 μm
CNC Turning±0.05 mm±0.005 mmRa 0.4 μm

Design Guidelines

  • Minimum wall thickness: 0.8mm
  • Minimum hole diameter: 0.5mm
  • Avoid sharp corners
  • Respect depth limitations

Tooling & Cutting Speeds

  • Correct tool selection
  • Optimal cutting speeds
  • Cooling and lubrication
  • Workpiece clamping
Precision starts at the design — respect the capabilities and tolerances of each CNC process.

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