NHANES (design-correct survey analysis)

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Create designs, manage assets, and automate design generation from external workflows

Design perfboard and stripboard layouts, check the wiring and get a link to open them in the editor.

Flashcard decks with pictures and card designs for a free vocabulary site in 60 languages.

Write, check and render parametric laser-cutting designs in KerfScript, as SVG or DXF.

MACKORN hydraulic cone crusher selection and crushing-plant design. 21 tools, callable over HTTP.