Engineering Drawing Foundations

By the end

What you'll build

• Read and interpret first-angle orthographic drawings to the Indian IS/BIS convention, and explain how they differ from third-angle.
• Identify and correctly use every standard line type and drawing convention from BIS / IS SP 46.
• Convert freely between isometric pictorials and three-view orthographic drawings.
• Interpret sectional views and hatching, including full, half, offset, broken-out and revolved sections.
• Apply and read dimensions to IS SP 46 — placement, systems, circles, holes, chamfers and basic tolerances.
• Calculate scales and representative fractions and choose an appropriate drawing scale.
• Inspect a 3D solid in the browser to identify true lengths, faces and the correct principal views.
• Model assigned parts in your own free CAD tool and verify them against checkable mass-property numbers.
• Spot common drawing errors — missing views, wrong hatching, ambiguous or over-dimensioning.
• Read a real shop drawing end to end: title block, revisions, notes, projection symbol and geometry.

Curriculum

What's inside

6 modules · 36 lessons

1. 01

   The Language of Lines: Instruments, Standards & Conventions

   6 lessons
   • Welcome: What Engineering Drawing Is (and What Karka Is Not)
   • Drawing Instruments & Setting Up Your Free Toolkit
   • The Drawing Sheet, Borders, Title Block & Scales
   • Line Types & Conventionsflashcard sr
   • Scale & Representative Fractionfill blank
   • + 1 more lesson
2. 02

   First-Angle Orthographic Projection (Indian Standard)

   7 lessons
   • The Glass Box: Six Principal Views
   • First-Angle vs Third-Angle: The Contrast You Must Never Forget
   • Where Each View Goes in First-Angle Layoutquiz
   • The Projection Symbol & Standards Deckflashcard sr
   • Inspect the Solid: Faces, Edges & True Lengthsmodel viewer
   • + 2 more lessons
3. 03

   Isometric & Orthographic Conversion

   6 lessons
   • Pictorial Views: Isometric Basics
   • Isometric Scale vs Isometric Drawingfill blank
   • From Isometric to Three Views
   • From Orthographic to Isometric
   • Model It #1: The Base Platefill blank
   • + 1 more lesson
4. 04

   Sectional Views & Hatching

   6 lessons
   • Why We Cut: Sections & Cutting Planes
   • Hatching Rules & Section Conventions
   • Section Types: Full, Half, Offset & Moreflashcard sr
   • Model It #2: The Drilled Blockfill blank
   • Reading a Sectioned Shaftquiz
   • + 1 more lesson
5. 05

   Dimensioning to IS SP 46

   6 lessons
   • Dimensioning Fundamentals & IS SP 46
   • Systems & Placement: Aligned, Unidirectional, Chain & Datum
   • Dimensioning Circles, Arcs, Holes & Chamfers
   • Dimensioning Symbols & Abbreviationsflashcard sr
   • Model It #3: The L-Bracketfill blank
   • + 1 more lesson
6. 06

   Reading Real Shop Drawings & Capstone

   5 lessons
   • Anatomy of a Shop Drawing
   • Model It #4: The Stepped Shaftfill blank
   • Inspect & Verify: Measure the Machined Blockmodel viewer
   • Timed Drill: Full Drawing Comprehensionquiz
   • Capstone: Reading Engineering Drawings (Final Exam)quiz

The shape of it

How this course works