Additive Manufacturing worked example

Print Scrap Rate at 2.88% target scrap rate: a worked example

Suppose target scrap rate falls to 2.88%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate scrapped additive parts as a percentage of total produced parts and compare with a scrap target.

The inputs for this scenario

Scrapped printed parts: 9 parts (held at the documented default)
Total produced parts: 210 parts (held at the documented default)
Target scrap rate: 2.88 % (the input this scenario stresses; the baseline uses 4)

Working through the calculation

The calculation starts from the formula this tool documents: Print scrap rate = scrapped printed parts ÷ total produced parts.
Print scrap rate works out to 4.29 % at these inputs, and this is the headline figure for the scenario.
Gap to target works out to -1.41 points at these inputs.
Scrapped printed parts works out to 9 parts at these inputs.
Total produced parts works out to 210 parts at these inputs.

How this compares with the baseline

Against the tool's baseline example, where target scrap rate sits at 4% and the headline result is 4.29 %, this scenario lands almost exactly on the baseline at 4.29 %.
It divides scrapped printed parts by total produced parts to give a print scrap rate, then compares it to your target scrap rate to show the gap. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

Print scrap rate: 4.29 % (headline result)
Gap to target: -1.41 points
Scrapped printed parts: 9 parts
Total produced parts: 210 parts

Run it with your numbers

To rerun this with your own numbers, open the live Print Scrap Rate calculator, set target scrap rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.