@sewlore

Sewlore

@sewloreJoined October 2026

Open-source sewing measurement tools and reproducible data-validation notes.

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Sewlore publishes open-source tools for sewing measurement records. Technical notes use reproducible software examples and clearly labelled hypothetical readings. Measurement methods: https://sewlore.com/pages/fabric-measurement-methods-guide

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SSewloresewlore.hashnode.dev2d ago · 5 min read

Validate Measurement CSVs Before Calculating Percentage Change

A percentage calculation can be correct while the comparison is meaningless. A row might mix centimetres and millimetres, use zero as its before reading, or combine unrelated spans. Parsing every cell

Sewlore

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Validate Measurement CSVs Before Calculating Percentage Change

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Sewlore

About

Available for

Sewlore's blogs

Recently published

Validate Measurement CSVs Before Calculating Percentage Change