How much filament do 3D printed replacement parts use?

Typically 5–80 g, taking 0.5–4 h of print time, depending on size, infill and supports. Your slicer gives the exact figure.

What material is best for replacement parts?

PETG, ASA, nylon are common choices.

How to price 3D printed replacement parts

Replacement knobs, brackets and appliance parts solve a specific problem. Buyers value the fix, and your cost is mostly design and fitting.

Typical material use

5–80 g

Typical print time

0.5–4 h

Common materials

PETG, ASA, nylon

Hands-on time

10–60 min (design and measuring)

Step 1: work out your real cost

The calculator is preset for a typical replacement part. Change it to your slicer's numbers.

Estimated cost per print

$11.78

Material: $0.63
Electricity: $0.04
Printer wear: $0.18
Labor: $10.00
Failed-print buffer: $0.94

An estimate from the numbers you enter. It leaves out packaging, shipping, marketplace fees and tax.

What drives the cost

Measuring, modeling and test fits dominate cost on one-offs.
Engineering filaments cost more.
Reprints for fit adjustments.

Costs the calculator leaves out

Inserts and screws
Test prints
Small parcel postage

Step 2: turn cost into a price

A simple method: price = (cost + fixed fees) ÷ (1 − fee % − margin %). Using the example print cost of $11.78, plus about $1.50 for extras, a 10% marketplace and payment fee and a $0.45 fixed fee gives:

Target margin	Price that covers it
10%	$17.16
20%	$19.61
30%	$22.88

Illustrative only. Use your marketplace's current fee schedule, shipping and tax. A price that covers cost is not a promise anyone will buy at it, so check demand and competing listings.

Pricing tips for replacement parts

Price one-off designs as custom work, and repeat known parts lower.
Use the exact part number or model compatibility in listings, without brand logos.
Avoid safety-critical parts.

License check: If you print someone else's design, confirm its license allows commercial use. Many free models are personal-use only. See the license guides.

Price other products

Know your cost. Now check the demand.

MeshNomics helps makers research what to make and sell. Compare model interest and marketplace signals, review commercial-use permissions and evaluate production costs before committing printer time and money.

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No card required. Estimates only, not a promise of sales or profit. Also free: cost calculator · STL repair.