Dimensional Inspection Methods for Die-Cast + CNC Parts: What We Use and Why

Tight tolerances and complex geometries demand more than just a visual check. That’s where dimensional inspection comes in—using calibrated tools to measure part accuracy against your technical drawings.

At LVIO Precision, we use a combination of manual and digital methods to verify critical features and ensure parts are within spec before shipment.

🧪 Key Dimensional Inspection Methods:

1. Digital Vernier Calipers & Micrometers

   Used for quick measurements of linear dimensions, OD/ID, and depths. Ideal for shop-floor sampling.

2. Height Gauges & Surface Plates

   For flatness, parallelism, and stepped measurements with higher repeatability.

3. Thread Gauges & Plug Gauges

   For checking tapped holes and bores, especially in CNC-machined features.

4. Coordinate Measuring Machine (CMM)

   Used for precise measurement of 3D dimensions, true position, and complex GD&T features. At LVIO, we operate Hexagon-brand CMMs for accurate part validation.

5. Vision Measuring Machine (VMM)

   Non-contact inspection for fragile or highly detailed features. Used for fine cosmetic parts or parts prone to distortion.

6. Go/No-Go Fixtures

   For rapid pass/fail checking of key features in high-volume production.

Dimensional reports (FAIR, PPAP, or customer formats) can be provided upon request. All gauges and equipment at LVIO Precision are traceable to national standards and calibrated on schedule.

We believe quality is more than just a department—it’s a culture that starts at the machine and finishes with your customer’s satisfaction.