Basics 13- Reading Construction and Working Drawings
Introduction to reading and developing a basic set of construction and mechanical working drawings.
GEC Reading and Constructing Working Drawings
Mechanical Working Drawings
Working drawings are the complete set of drawings specifying the manufacture and assembly of a product.
Generally consists of multiple drawings, on multiple sheets.
May contain written instructions called specifications.
Contents of a Set of Working Drawings
1. Detail drawings of each nonstandard part.
Usually one part per “sheet”.
2. An assembly drawing (or subassembly drawings) showing all parts in a single drawing.
3. A bill of materials (BOM).
This is essentially a parts list.
4. A title block on each sheet.
Reading Working Drawings
Our first goal is to learn how to read a set of working drawings.
Example: simple fingernail clipper
Example 1 - Assembly Drawing
Full Section View
Detailed Part Drawing: Rivet
Detailed Part Drawing: Bottom Clipper
Example 2 - Butterfly Valve
Individual Part Drawings
DWG 16 Assembly from Graphicomp
– Due in Basics 14