SPOOLMARGIN / PART-TYPE QUOTES
How much to charge for a replacement gear
A typical replacement gear (20 g, 1.5 print hours, 5 minutes of finishing) costs about $21.07 to produce at the calculator's illustrative default prices, and suggests a price of about $35.13 at a 40% target margin with a 10% failure allowance.
- Material used
- 20 g
- Print time
- 1.5 hours
- Finishing time
- 5 minutes
- Modeled production cost
- $21.07
- Suggested price (40% margin)
- $35.13
About this part type
A small mechanical replacement part; tight tolerances mean failed attempts are more likely than for decorative prints.
Worked quote: replacement gear with marketplace fees
- Filament: 20 g at $24.00/kg
- $0.53
- Machine time: 1.5 hr at $0.30/hr
- $0.50
- Electricity: 120 W at $0.20/kWh
- $0.04
- Labor: 15 min setup + 5 min finishing at $30.00/hr
- $10.00
- Packaging, delivery and overhead
- $10.00
- Payment fees (9.5% + $0.25 on the suggested price)
- $4.26
- Suggested price at 40% target margin
- $42.23
The filament, machine, and electricity lines already include the 10% failed-attempt allowance, which adds $0.11 to this job. Fees use the calculator's typical Etsy profile (9.5% + $0.25); other fields are the calculator's defaults. Computed with the same calculateJob function as the calculator.
Page reviewed 2026-10-05. Data source: Grams, print hours, and finishing minutes are example values entered by us, not measured data; costs are computed by the calculator's quote engine.
Assumptions behind this example
This example keeps the calculator's default $24/kg PLA, $0.20/kWh electricity, $30/hour labor, $800 printer amortized over 4,000 hours, 10% failure rate, and $10 combined packaging/shipping/overhead, changing only this part's grams, print hours, and finishing time. Your own material, printer, local electricity rate, and failure rate will change the result; open the calculator to use them.