Stop Before the Spindle Starts
Identify the hazard-control move to make before starting a CNC setup.
The reframe: the safest CNC decision is made while the machine is still quiet. A setup checklist asks whether required items are present. A Job Hazard Analysis asks a deeper question: at each step, what could release energy, eject material, create a pinch point, defeat guarding, or force awkward body position? Break the job into motion points For CNC operation, useful JHA steps are not vague labels like prepare job. Use motion points: lift blank to vise, sweep table, install soft jaws, touch off Z, dry run above stock, start coolant, clear chips, measure first article. Each point has different…
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