CNC AutoOffset ROI Calculator
This calculator builds a transparent CNC AutoOffset business case from production volume, scrap assumptions, operator time and investment. It does not claim that a specific correction result will be achieved.
Run the calculation
Your data stays in this browser. No measurements are uploaded.
- 1 Enter data
- 2 Review results
- 3 Take action
Ready for your data
Complete the inputs or load the worked example. Results will include the primary decision, interpretation and supporting metrics.
Worked example
For two machines producing 500 parts/day over 300 days, reducing scrap from 2% to 1% avoids an estimated 3,000 scrapped parts before yield interactions or ramp-up effects.
Load the example in the calculatorFormula and methodology
- Avoided scrap is the difference between current and projected scrap applied to annual production.
- Operator-time saving is valued using entered minutes and labour cost.
- Simple payback excludes finance, tax, maintenance, downtime and ramp-up unless included in your inputs.
Avoided scrap = annual parts × (current scrap% − projected scrap%)Labour saving = machines × days × minutes saved ÷ 60 × hourly costPayback months = investment ÷ annual benefit × 12 How to interpret the result
- Treat projected scrap and time saving as sensitivity assumptions, not guarantees.
- Feasibility depends on measurement timing, controller interface, safe correction limits and traceability.
- Validate benefits through a controlled pilot before scaling.
Common errors and limitations
- Counting the same labour saving twice.
- Ignoring correction limits, tool wear strategy and measurement-system capability.
- Assuming every rejected part is recoverable by AutoOffset.
Turn the calculation into an engineering decision
Share the drawing, process conditions and result context. AccuTouch can review the measurement, fixture, SPC or automation starting point.
Frequently asked questions
What is CNC AutoOffset?
It is a configured workflow that uses approved measurement results to propose or transmit bounded CNC tool-offset corrections.
Does this calculator prove feasibility?
No. Controller, process, gauge, safety and correction logic must be reviewed.
Should rework be entered as scrap?
Use the actual economic cost for each category. If rework and scrap costs differ, model them separately outside this simplified tool.
Technical references
Use the current controlled standard or your organisation’s approved method where it differs from this screening tool.
Method content reviewed 13 August 2026. Independent technical approval is still required before production publication or use in a controlled quality procedure.