Optimal Tolerances & GD&T Practices in CNC Machining

Optimal Tolerances & GD&T Practices in CNC Machining

For optimal tolerances and GD&T practices in CNC machining, focus on specifying tolerances that are functionally necessary and realistic for the machine's capabilities. Use GD&T to control geometric variations, ensuring features are correctly aligned and positioned, crucial for complex assemblies. 

Balance Precision, Manufacturability, and Cost

In CNC machining, tolerance decisions can make or break a project. Over-specifying tolerances leads to excessive costs and delays; under-specifying results in poor fit or functional failure. At Rollyu Precision, we help customers apply optimal tolerances and smart GD&T (Geometric Dimensioning & Tolerancing) practices that align with real-world manufacturing and inspection capability.

1. Start with Functional Requirements

Not every dimension needs ±0.01 mm.