3D Printing Efficiency (Commercial) Calculator Examples
Worked commercial 3D printing scenarios show how material waste, failure rate, machine time, and labor affect expected cost per good part.
Use these calculation patterns to test a low-waste production part, a support-heavy geometry, or a process with a higher expected failure rate. Results are direct-cost estimates rather than quotations.
Low-waste production part
A 60 cm³ component uses material at 1.20 g/cm³, has 5% waste, takes 4 hours to print, and has a 3% failure rate.
Input Summary
Part volume
60 cm³
Density
1.20 g/cm³
Material cost
$28.00/kg
Waste allowance
5%
Print time and machine rate
4 hours at $9.00/hour
Failure rate
3%
Post-processing labor
0.25 hours at $24.00/hour
Calculation Breakdown
- 1Part weight60 × 1.2072.0 g
- 2Material used72.0 × 1.0575.6 g
- 3Attempt cost75.6 / 1000 × 28.00 + 4 × 9.00$38.12
- 4Good-part cost38.12 / 0.97 + 0.25 × 24.00$45.30
Result Summary
Good-part cost
$45.30
3D Printing Efficiency (Commercial) Calculator
Expected cost per good part is about $45.30, with 4.12 expected machine hours per good part.
Support-heavy prototype
A 250 cm³ part has a 25% waste allowance, takes 16 hours to print, and has a 10% failure rate.
Input Summary
Part volume and density
250 cm³ at 1.10 g/cm³
Material cost
$35.00/kg
Waste allowance
25%
Print time and machine rate
16 hours at $7.50/hour
Failure rate
10%
Post-processing labor
1.5 hours at $26.00/hour
Calculation Breakdown
- 1Part weight250 × 1.10275.0 g
- 2Material used275.0 × 1.25343.75 g
- 3Attempt cost343.75 / 1000 × 35.00 + 16 × 7.50$132.03
- 4Good-part cost132.03 / 0.90 + 1.5 × 26.00$185.70
Result Summary
Good-part cost
$185.70
3D Printing Efficiency (Commercial) Calculator
Expected cost per good part is about $185.70, with 17.78 expected machine hours per good part.
Higher-risk production process
A 100 cm³ part has 10% waste but a 20% expected failure rate during a developing production process.
Input Summary
Part volume and density
100 cm³ at 1.24 g/cm³
Material cost
$30.00/kg
Waste allowance
10%
Print time and machine rate
8 hours at $10.00/hour
Failure rate
20%
Post-processing labor
0.5 hours at $25.00/hour
Calculation Breakdown
- 1Material used100 × 1.24 × 1.10136.4 g
- 2Attempt cost136.4 / 1000 × 30.00 + 8 × 10.00$84.09
- 3Yield-adjusted print cost84.09 / 0.80$105.11
- 4Good-part cost105.11 + 0.5 × 25.00$117.61
Result Summary
Good-part cost
$117.61
3D Printing Efficiency (Commercial) Calculator
Expected cost per good part is about $117.61, with 10 expected machine hours per good part.
How to Read Your Results
Cost per good part is a direct production estimate, not a final selling price.
Expected machine hours include the effect of failed attempts and can be used for rough capacity planning.
Material used per attempt includes the selected waste allowance but does not itself multiply for failure.
Successful yield equals 100% minus the entered failure rate.
Material utilization describes support and waste efficiency before the added effect of failed attempts.
Assumptions & Important Notes
- Each example assumes failed attempts consume a full attempt's material and machine time.
- Machine and labor rates are illustrative only.
- Post-processing time is applied only to accepted parts.
- Examples exclude design, setup, packaging, shipping, taxes, and margin.
Related Examples
Frequently Asked Questions
Can I use the calculator for a single prototype?
Yes. Enter the expected waste, failure rate, machine time, and finishing labor for that specific prototype workflow.
Which input usually changes commercial print cost the most?
It depends on the process, but long print time, high machine rate, and a low successful yield can have a large effect on direct cost.
Should I use a different failure rate for each part?
Using part- and process-specific historical data can make the estimate more representative than using one rate for all jobs.
Can several parts in one build be estimated separately?
This calculator estimates one part per attempt. Shared build time, shared setup, and batch failures may need a separate allocation method.
Ready to calculate your own result?
Use the live calculator with your own inputs, timing, and preferences.