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Decision fieldOpen accessMaterial Sourcing RequestGlobalRemoveOpen accessControlled Tech Pack OrientationGlobalRemoveFree downloadSeamly2DGlobalRemoveOpen accessHook & Needle Diameter ReferenceGlobalRemove
Decision fit
Primary jobChoose materialsSource productionFind patterns & fitLearn techniques
AreaMaterialsProductionPatterns & fitYarn
Best forRequesting comparable fabric, trim, or component offersUnderstanding what a tech pack must control before using a template or releasing workDigital pattern draftingChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge
Know before usingThe request does not set product-specific pass values, prove fitness or safety, validate claims, replace laboratory testing, or determine legal compliance.An orientation rather than a completed product record; it does not supply a universal format, licensed standard content, measurements, tolerances, construction settings, labels, approvals, compliance conclusion, or product-release authority.Patternmaking knowledge, controlled measurement files, production conventions, and sewn fit testing are still required. The software does not validate body measurements, ease, balance, grading rules, fabric behavior, construction, or product fit. The project currently labels its user wiki manual as needing updates, so confirm current commands and file behavior against the installed release and active support channels.The reference is not a dimensional measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, gauge result, or proof that a proposed tool will produce the required fabric.
Practical access
ForApparel brandsApparel brandsBothMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessOpen accessFree downloadOpen access
FormatStitch AuthorityStitch AuthoritySoftwareStitch Authority
Source typeStitch AuthorityStitch AuthorityOpen-source projectStitch Authority
Source and review
What the source establishesThe request uses official textile test-method scopes, labeling guidance, and trade capability questions to keep specifications, methods, samples, substitutions, and supplier evidence comparable.The guide cites current ISO sources for documented-information, garment-measurement, stitch, and seam boundaries plus current U.S. FTC textile and care-labeling guidance; it explicitly separates those authorities from product-specific technical and market decisions.The maintained Seamly2D repository identifies the application as GPLv3+ open-source patternmaking software for Windows, macOS, and Linux. It reads multi-size measurement files for standardized sizes and individual measurement files for custom-fit work, publishes downloadable builds and releases, and links an active website and user forum.The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows and follows the Council's warning that company letter and number labels vary; blank aliases remain blank instead of being inferred.
Linked page reviewedJul 15, 2026Jul 16, 2026Jul 21, 2026Jul 16, 2026
Next review dueJul 15, 2027Jul 16, 2027Jan 17, 2027Jul 16, 2027
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