TECH 104 – Technical Graphics Communication Week 11: Isometric Sketching

TECH 104 – Technical Graphics Communication Here’s what we talked about last time…Working Drawings First,

TECH 104 – Technical Graphics Communication Generally, a complete set of Working Drawings for an assembly includes: 1.) Detail Drawings of each non-standard part. 2.) An Assembly or Subassembly drawing showing all the standard parts in a single drawing. 3.) A Bill of Materials (BOM). 4. A Title Block.

Assembly Drawing of a Piston & Rod containing 8 parts. An assembly drawing normally consists of the following: 1. All parts drawn in their operating position 2. A parts list or Bill of Materials (BOM) 3.Leader lines with balloons indicating all parts. 4. Machining and assembly instructions It’s own Drawing Number Part Numbers (of individual parts) Also,

Detail Drawing of the retainer ring used to fasten the rod to the piston.

TECH 104 – Technical Graphics Communication A Closer Look at Title Blocks A.Name & Address of Company B.Title of the Drawing C.Drawing Number D.Names and dates of drafters, checker, issue date, contract number, etc. E. Design Approval F. Additional Approval Block G. Drawing Scale H. Federal Supply Code for Manufacturers J. Drawing Sheet Size K. Actual or estimated weight L. Sheet Number They Contain:

TECH 104 – Technical Graphics Communication The information normally included in a parts list is as follows: 1. Name of the part. 2. A detail number for the part in the assembly. 3. The part material, such as cast iron or bronze. 4. The number of times that part is used in the assembly. 5. The company assigned part number. 6. Other information, such as weight, stock size, etc. And Attached to Title Blocks…Parts Lists

TECH 104 – Technical Graphics Communication Also on Many Assembly Drawings…Revision Blocks Record any changes - Found in upper-right corner

TECH 104 – Technical Graphics Communication Remember Standard Thread Notes:

TECH 104 – Technical Graphics Communication And How to Specifying Tap Drill Size :

TECH 104 – Technical Graphics Communication And Thread Representation:

TECH 104 – Technical Graphics Communication And Finally a Segway to Today’s Topic - Pictorial Assemblies Sectioned Assembly

Pictorial Sketching Classification of Sketches

With Isometric, Remember… “30, 30, Vertical”

Isometric and Non-Isometric Liines and Planes

Steps in Creating an Isometric Sketch ! !

Steps in Creating an Isometric Sketch Use the “Box In” Method

Constructing an Isometric Drawing Having Non-Isometric Lines

Constructing Angles in an Isometric Sketch

Locating Points to Create an Isometric Drawing of an Irregular Object.

Constructing Drawings with an Oblique Surface

Constructing Irregular Curves in an Isometric Sketch

TECH 104 – Technical Graphics Communication This Week’s Sketches Assignment # 32 · Page 64 (1, 2, 3, 14) (ISOMETRIC SKETCHES 1) Assignment # 33 · (12, 24, 34, 35) On PowerPoint Only (ISOMETRIC SKETCHES 2) ∙ Isometric Grid Paper to be used ∙ 4 Objects per Page / Two Pages – Total Points = 40

Isometric Sketches

Isometric Sketches

Practice Problems

TECH 104 – Technical Graphics Communication Week 12: Isometric Sketching (Continued)