Commercial 3D Printing Budget Formula
Learn how to calculate commercial 3D printing production cost, allocated overhead, quote price, and gross profit margin.
A commercial 3D printing quote should recover the direct cost of making the job, a share of general business overhead, and the profit margin your business targets. This calculation combines material, machine time, labor, job-specific expenses, and overhead before converting the total cost into a margin-based selling price.
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Recommended Commercial 3D Printing Quote
Where:
First calculate the full production cost, including allocated overhead. Then divide that cost by the percentage of the sale price that remains after the target profit margin.
Variables Explained
| Variable | What It Means | Unit |
|---|---|---|
| W - Material weight | Usable printing material consumed by the part or full job. | g |
| P_m - Material price per kilogram | Purchase cost for one kilogram of usable material. | currency |
| H_m - Print hours | Expected active machine print time. | hours |
| R_m - Machine rate | Hourly machine cost used for the job. | currency |
| H_l - Labor hours | Hands-on time for setup, monitoring, post-processing, inspection, and packing. | hours |
| R_l - Labor rate | Fully loaded hourly labor cost. | currency |
| D_o - Other direct costs | Job-specific costs such as inserts, consumables, packaging, or outsourced finishing. | currency |
| O - Overhead allocation | Overhead percentage applied to direct production costs. | percent |
| M - Target profit margin | Desired gross profit as a percentage of the quoted sale price. | percent |
| TPC - Total production cost | Direct production cost plus allocated overhead. | currency |
Step-by-Step Calculation
Calculate material cost
Convert grams to kilograms, then multiply by the material purchase cost per kilogram.
materialCost = materialWeight / 1000 * materialPricePerKg
Calculate machine cost
Multiply expected print time by the hourly machine cost.
machineCost = printHours * machineRate
Calculate labor cost
Multiply all hands-on production time by the loaded hourly labor rate.
laborCost = laborHours * laborRate
Add direct production costs
Combine the costs directly attributable to the job.
directCost = materialCost + machineCost + laborCost + otherDirectCosts
Allocate business overhead
Apply the selected overhead percentage to direct costs.
overheadCost = directCost * overheadRate / 100
Calculate total production cost
Add allocated overhead to direct production cost.
totalProductionCost = directCost + overheadCost
Calculate the target-margin quote
Divide the total cost by the cost share of the intended selling price. This produces a quote with the selected gross margin, before charges not included in the inputs.
recommendedQuote = totalProductionCost / (1 - targetMargin / 100)
Example: Quoting an FDM functional prototype
Material cost
250 / 1000 * 25
$6.25
Machine cost
12 * 4
$48.00
Labor cost
1.5 * 30
$45.00
Direct production cost
6.25 + 48.00 + 45.00 + 10.00
$109.25
Allocated overhead
109.25 * 15 / 100
$16.39
Total production cost
109.25 + 16.39
$125.64
Recommended quote
125.6375 / (1 - 30 / 100)
$179.48
Final Result
Estimated production cost: $125.64. Recommended quote at a 30% target gross margin: $179.48. Estimated gross profit: $53.84.
Assumptions
- ✓Material weight represents the usable material consumed for one part or the complete job being quoted.
- ✓The machine rate includes the equipment costs the business chooses to recover, such as energy, maintenance, depreciation, and routine downtime.
- ✓Overhead is allocated as a percentage of direct production costs.
- ✓Target margin means gross profit divided by quoted sale price, not profit divided by cost.
- ✓Taxes, payment processing fees, delivery charges, and unentered costs are excluded.
Limitations
- !Actual costs can differ if a print fails, requires a reprint, or takes longer than expected.
- !The calculation does not determine whether the resulting price is competitive or acceptable to a customer.
- !Complex finishing, quality documentation, rush handling, and warranty exposure may need separate cost allowances.
- !An average overhead percentage may not reflect the exact cost structure of every job or production run.
Common Mistakes to Avoid
Entering material cost per gram when the input expects a price per kilogram.
Treating print time as labor time even when the machine runs unattended.
Using a machine rate that duplicates costs already included in overhead.
Adding a target margin directly to cost, which calculates markup rather than gross margin.
Leaving out setup, removal, cleanup, inspection, packing, or post-processing labor.
Pricing a single part without allowing for expected scrap, failures, or reprints when these are common.
Related Formulas
Frequently Asked Questions
How is a commercial 3D printing quote calculated?
The calculation adds material, machine, labor, and other direct costs, applies overhead, and divides the total production cost by one minus the target gross margin.
What is the 3D printing material cost formula?
Material cost equals material used in grams divided by 1,000, multiplied by the material price per kilogram.
Why does a 30% margin require more than a 30% markup?
Margin is measured against sale price, while markup is measured against cost. For example, a 30% gross margin requires dividing cost by 0.70 rather than multiplying cost by 1.30.
What should be included in the machine hourly rate?
It can include equipment depreciation, maintenance, energy, replacement parts, software, and expected downtime, depending on which costs you want the rate to recover.
Can this formula be used for resin, SLS, and FDM jobs?
Yes. Use the relevant material quantity and purchase cost, then set machine, labor, and other direct costs for the process and finishing required.
How do failed prints affect the quote?
Expected failures can be reflected by increasing material use, machine time, labor, other direct costs, or overhead based on the business's typical experience.
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