Before program execution
Confirm that the learner understands emergency procedures and has authorization to use the equipment. Verify the workholding, stock dimensions, tool assemblies, pockets, offsets, work zero, units, positioning mode, and machine travel required by the program.
Review the opening blocks and the first motion after each tool change. Check spindle direction, programmed RPM, feed, coolant expectations, clearances, and any rapid motion near the stock.
- Workholding secure and appropriate
- Correct material and stock dimensions
- Tools, holders, pockets, and offsets verified
- G54 and initial position confirmed
- Units and positioning mode reviewed
- Spindle, feed, coolant, and first motions inspected
During execution
Follow the approved prove-out procedure. Observe the active line, programmed and actual feed, programmed and actual spindle speed, machine loads, coolant state, tool changes, and clearances.
Warnings and alarms must be interpreted in context. In Mech CNC Mill, safety conditions are reflected during program execution rather than being represented as a universal pre-cycle gate.
- Know when to use Single Block and Feed Hold
- Watch rapid motion and approach height
- Monitor cutting air and below-stock motion
- Observe spindle and axis-load estimates
- Stop and investigate unexpected behavior
After the run
Review the completed part, remaining stock, warnings, elapsed time, tool use, and report. A successful completion does not automatically prove that every setup choice was optimal.
Document what changed, why it changed, and what would require independent verification before the same program is considered on physical equipment.
Common questions
Is this a universal machine checklist?
No. Always follow the machine manufacturer, institution, employer, and instructor procedures that apply to the actual equipment.
Does Mech CNC Mill show safety conditions before Cycle Start?
Runtime alarms and safety conditions are reflected during execution. Setup review remains the learner's and instructor's responsibility.
Does the simulator include cutting-air checks?
Yes. Its training feedback includes feed motion above the stock that may indicate an incorrect Z zero or program height.