In this episode, we dive into the foundational principles of dimensional tolerancing and dimensioning guidelines in engineering drawings. Learn why every dimension needs a tolerance, how tighter tolerances impact manufacturing cost, and what factors determine tolerance size.We’ll explore key drawing standards—including projection and dimension lines, arrowheads, and text placement—along with best practices for indicating diameters, radii, and centre lines. You'll also hear why avoiding over-dimensioning and hidden detail dimensioning is essential, and how a clear tolerance table supports efficient production.Based on 4 core sources, this episode distills the essentials to help you apply tolerancing more effectively in your technical drawings.

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