CNC Machinist (G-Code Experience)

A CNC Operator is responsible for setting up, adjusting, and running machinery based on engineering drawings. When G-code proficiency is required, operators read schematics and manually edit geometric and miscellaneous commands directly at the controller to optimize cuts, manage offsets, and ensure precision production.

Core Responsibilities

• Programming & Editing: Read, interpret, and manually edit G-code (e.g., G01, G02, G03)
• Machine Setup: Mount, align, and secure workpieces, fixtures, and tooling using precision instruments.
• Quality Control: Perform regular first-article and in-process inspections using micrometers, calipers, and CMM (Coordinate Measuring Machine) reports.
• Offset Adjustments: Modify machine parameters, feed rates, and tool wear offsets to hit exact blueprint tolerances.
• Troubleshooting: Listen for unusual vibrations or sounds indicating dull cutting tools and replace or adjust accordingly.

Requirements & Qualifications

• Experience: Typically requires 1-3+ years of verifiable CNC setup and machine operation experience.
• Technical Literacy: Flawless ability to read and interpret complex engineering schematics and GD&T (Geometric Dimensioning and Tolerancing) callouts.
• Mathematical Aptitude: Strong working knowledge of shop math. The surface speed of a part is calculated dynamically using formulas such as:

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