Precision measurement for quality control
| Feature | Min Points | Probe Type |
|---|---|---|
| Plane | 4-6 | Touch trigger |
| Circle | 4-8 (basic), 12+ (precise) | Touch/scanning |
| Freeform surface | 20+ per sq cm | Scanning (constant |
| Cylinder | 8-12 per level, 3 levels | Touch trigger |
Ideal: 20+-1C. Parts must stabilize min 4 hr. Rule: +1C = +11 microns/m for steel.