Standard

Rev.10/23/03

AEP 102 - Basic Drafting Techniques

Course Description

Introduces basic drafting techniques found in a manufacturing environment. Topics include: freehand sketching, lettering, standards and concepts, basic geometric construction, basic dimensioning, advanced dimensioning and tolerancing, orthographic projections, sectional views, auxiliary views, pictorial views, and intersections.

Competency Areas	Hours
Freehand Sketching	Class	7
Lettering	D. Lab	0
Standards and Concepts	P. Lab/O.B.I.	3
Basic Geometric Construction	Credit	8
Basic Dimensioning
Advanced Dimensioning and Tolerancing
Orthographic Projections
Sectional Views
Auxiliary Views
Pictorial Views
Intersections
Prerequisite: Program admission
Corequisite:

Course Guide

Competency	After completing this section, the student will:	Hours
		Class	D. Lab	P. Lab/ O.B.I.
FREEHAND SKETCHING		4	0	4
Lines	Sketch horizontal and vertical lines.
	Sketch oblique lines.
	Sketch arcs/curved lines.
Circles	Sketch circles using proper techniques.
Parallel lines	Demonstrate the principles of parallel line sketching.
Nonparallel lines	Demonstrate the principles of nonparallel line sketching.
LETTERING		4	0	1
Mechanics	Demonstrate the mechanics of lettering, shape, size, weight, slope, and spacing.
STANDARDS AND CONCEPTS		6	0	1
Classifications	List job drafting classifications.
Specializations	List job specializations.
Standards	Locate information in Y14.5 standards.
Title block	Enter complete information into manual title block.
Concepts	Identify basic drafting tools, templates, and aids.
	Use vellums, films, and intermediates.
Prints	Make prints of different types.
BASIC GEOMETRIC CONSTRUCTION		4	0	2
2-D construction relationships	Bisect lines or arcs.
	Draw normal and parallel lines.
	Bisect angles.
	Draw arcs and tangents.
	Construct polygons.
	Draw a parabola.
	Construct special curves.
BASIC DIMENSIONING		7	0	3
Dimensions	Draw symbols, lines, leaders, numbers, extensions, and arrows.
Conversions and scales	Convert to different systems of measurement.
Placement	Place dimension on a drawing to industrial standards.
Aligned and unidirectional dimensions	Use aligned and unidirectional dimensions.
Special features	Dimension selected special features.
Notations	Spell general and local notations.
	Format general and local notations.
ADVANCED DIMENSIONING AND TOLERANCING		12	0	0
Features	Identify datum planes, datum features, datum targets, and datum symbols.
Positional tolerancing	Define the elements of positional tolerancing symbols: flatness, straightness, cylindricality, circularity, parallelism, angularity, concentricity, symmetry, contour/runout.
Conversion	Convert coordinate dimensions to true-position dimensions.
ORTHOGRAPHIC PROJECTIONS		15	0	3
Normal planes	Describe six normal planes and their relationships.
Alphabet of lines	Identify line symbols.
Aircraft geometry	Identify lines found in aircraft geometry: loft lines, mold lines, water lines, other reference planes and lines.
Multiview drawings	Complete multiview drawings.
Measurements	Take measurements using an engineer's scale.
SECTIONAL VIEWS		4	0	6
Full sections	Complete a drawing involving the concept of full sections.
Half sections	Complete an exercise involving the concept of half-section usage.
Broken-out views	Complete a drawing using broken-out and auxiliary sectional views.
Aligned, revolved, and removed	Complete a drawing with aligned, revolved, and removed sections.
AUXILIARY VIEWS		4	0	4
Primary views	Complete a sketch using front, top, and side auxiliary views.
PICTORIAL VIEWS		4	0	4
Isometric sketches	Complete isometric sketches involving the use of offset measurements, circles, curved surfaces, angles, and nonisometric lines.
	Complete an isometric sketch in section.
Oblique sketches	Complete oblique sketches.
Dimensioning	Dimension both isometric and oblique sketches.
INTERSECTIONS		6	0	2
Principles	Describe principles involved in the development of intersecting lines, planes, and solids.
Applications	Draw a true line length development.
	Draw an intersection of a line and a plane.
	Draw an intersection of two planes.
	Draw an intersection of a plane and a solid.
	Draw an intersection of two solids.

Suggested Resources

The most recent edition of the books listed below should be used.

Books

Arnbal, C. A., & Crawford, J. V. Problems in engineering graphics. Dubuque, IA: Kendall-Hunt.

Croft, F. M., et al. Engineering graphics. New York: John Wiley & Sons.

Dent, J. B., et al. Fundamentals of engineering graphics. New York: Macmillan.

Eide, A. R., et al. Engineering graphics fundamentals. New York: McGraw-Hill.

Eide, A. R., et al. Engineering graphics problems book II to accompany engineering graphics fundamentals. New York: McGraw-Hill.

French, T. E., et al. Engineering drawing & graphic technology. New York: McGraw-Hill.

Giesecke, F. F., et al. Principles of engineering graphics. New York: Macmillan.

Jensen, C. H., & Helsel, J. D. Engineering drawing & design. New York: McGraw-Hill.

Luzadder, W., & Duff, J. M. Introduction to engineering drawing. Englewood Cliffs, NJ: Prentice Hall.

O'Bryant, D. C., et al. Problems in engineering graphics. Champaign, IL: Stipes.

Rogers, H. Problems book: Engineering drawing & graphic technology. New York: McGraw-Hill.

Spence, W. P. Engineering graphics. Englewood Cliffs, NJ: Prentice Hall.

Spence, W. P. Engineering graphics workbook (Vol. 1). Englewood Cliffs, NJ: Prentice Hall.

Spence, W. P. Engineering graphics workbook (Vol. 3). Englewood Cliffs, NJ: Prentice Hall.