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BlueprintExercises
  • Drawing basicsLine types, first and third angle projection, orthographic views and title blocks.
  • Scale readingRead real lengths off a drawing with an architect's scale or a metric scale rule.
  • Welding symbolsReference line, arrow side, weld types, sizes, length and pitch, field welds.
  • Mechanical printsDimension symbols, tolerances, limits and fits, thread callouts and surface finish.
  • Construction plansFloor plan symbols, dimension strings, elevations, sections and levels.
  • Electrical drawingsSymbols, contacts and control logic, device tags, wire colours and wire sizes.
  • GD&TFeature control frames, datums, tolerance zones and bonus tolerance.
Every course has a practice test and works in US and European standards.All courses
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Questions about a lesson, your account or a payment, or found a mistake in an exercise? Emailsupport@blueprintexercises.com. We usually answer within two working days.

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Blueprint Exercises is a trade name of MetaWorkx, a sole proprietorship (eenmanszaak) registered in the Netherlands, Chamber of Commerce (KvK) number 62661833. Registered address: Kladseweg 65A, 4664 RC Lepelstraat, the Netherlands. Email: support@blueprintexercises.com.

BlueprintExercises

Practice reading technical drawings, welding symbols and blueprints. US and European standards, every answer checked on the spot.

Courses

  • Drawing basics
  • Scale reading
  • Welding symbols
  • Mechanical prints
  • Construction plans
  • Electrical drawings
  • GD&T

Reference

  • Welding symbols chart
  • Thread chart
  • Common drawing scales
  • ASME vs ISO GD&T

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© 2026 Blueprint Exercises

Standards are named for reference only. Blueprint Exercises is not affiliated with AWS, ASME, ISO or IEC. All explanations and drawings are our own.