Drawing Instruments and Scales LECTURE PRESENTATION Required Reading Chapter 3: Technical Drawing Tools Dyson Video Homework Assignment See Homework Assignments Recommended Reading Unit Mixups Outline Pencils Paper Paper Sizes (ASME Y14.1) Graph Paper Blueprints Drafting Machine T-squares Triangles Protractor Compass Dividers Scales Rulers Architect’s Scale Engineer’s Scale Units – English/Metric Printer Friendly