Electronics CNC Machining: An Interface-Controlled Buyer Guide

Design & Inspection Guide Translate thermal, grounding, finish, fit, and cleanliness needs into a part package that a machine shop can quote, manufacture, and inspect. Electronics CNC machining isn’t difficult because every enclosure or heat sink needs an extreme tolerance.…
Metal Hardness for CNC Parts: From Test Method to Drawing Note

Metal hardness is the level of resistance offered by a material to localized loads. These loads can be indentation, scratching, or other surface deformation. For a CNC part, hardness is resistance to a specified local deformation mechanism, usually indentation under…
CNC Fundamentals: A Practical Guide to CNC Machining

CNC fundamentals are the core principles that connect a drawing, machine, toolpath, and inspection record to a repeatable, inspected part. This guide discusses the decisions made by engineers and buyers before the production of a custom component, covering CAD/CAM, machine…
CNC Workholding: A Force-Path Guide to Fixtures and Clamping

CNC TOOLING GUIDE The effectiveness of a workholding method relies on the datum, support, force path, access envelope, and proof that exist after cutting and releasing. Quick Answer, Choose the Force Path Before the Fixture Name CNC workholding is a…
Types of Milling Cutters: A Feature-First Selection Guide

Reviewed by the cnc.zhenlingmetal.com technical team | Updated September 2026 Types of Milling Cutters are best compared by the feature to be machined and the milling machine envelope needed to create it. This guide classifies the tool based on the…
GD&T Symbols Made Practical: A Beginner’s Guide for CNC Drawings

Updated September 2026 GD&T Symbols and Basics are rules and symbols that make every callout answer three questions: what geometry may vary, what reference establishes the part, and what evidence will decide acceptance. This guide separates the 12 current ASME…




