Engineering drafting for advanced users

Assembly drawings with bills of materials, and an introduction to geometric dimensioning and tolerancing.

2 lessons · about 0.7 hours · free

Assemblies and GD&T

1. 1. Assembly drawings and bills of materials

   Assembly drawings show how parts go together; the bill of materials lists what’s needed. Learn how they’re laid out and how they link to detail drawings.

   • • Lay out an assembly drawing
   • • Balloon parts and create a bill of materials
   • • Handle standard parts correctly

   18 min

2. 2. Introduction to GD&T

   Geometric dimensioning and tolerancing controls form, orientation and position more precisely than ± tolerances alone. Learn to read the basics confidently.

   • • Explain why GD&T is used
   • • Read a feature control frame
   • • Understand datum reference frames

   22 min