Multiview drawings provide a clear and accurate way to describe objects through views seen from different positions. The standard views are the front, top, and right side views, which are arranged in a specific order. Orthographic projection is used to project these views onto imaginary planes perpendicular to the object. Key aspects of multiview drawings include indicating hidden lines, dimensioning features, and representing curved surfaces differently in each view. Being able to understand and create multiview drawings of objects is an essential technical drawing skill.

1. MULTIVIEW
DRAWINGS

2. TECHNICAL DRAWINGS/MULTIVIEW
DRAWINGS
 GIVES CLEARER MORE ACCURATE DESCRIPTION OF
OBJECT THAN A PICTURE OR WRITTEN DESCRIPTION
 VIEWS OF THE OBJECT AS IT IS SEEN FROM DIFFERENT
POSITIONS
 VIEWS ARE ARRANGED IN A STANDARD ORDER

3. SIX VIEWS OF AN OBJECT
 MOST OBJECTS HAVE SIX SIDES/VIEWS:
 TOP
 BOTTOM
 FRONT
 REAR
 RIGHT-SIDE
 LEFT-SIDE
 TYPICALLY ONLY 2-3 VIEWS ARE
NEEDED TO COMPLETELY SHOW THE
SHAPE AND SIZE OF AN OBJECT

4. NORMAL VIEWS
 THREE MOST COMMON
VIEWS:
 FRONT: SHOWS WIDTH AND
HEIGHT
 TOP: SHOWS WIDTH AND DEPTH
 RIGHT-SIDE: SHOWS DEPTH AND
HEIGHT
 TYPICALLY ONLY NEED 3
VIEWS BECAUSE SOME
VIEWS GIVE SAME
INFORMATION FOUND ON
OTHER VIEWS

5. ORTHOGRAHIC PROJECTION
 PROCESS OF PROJECTING 2 OR MORE VIEWS OF AN
OBJECT ONTO IMAGINARY PLANES BY DRAWING LINES
PERPENDICULAR FROM THE OBJECT TO THE PLANES
 VIEWS THAT MAKE UP MULTIVIEW DRAWINGS ARE
CREATED THROUGH ORTHOGRAPHIC PROJECTION
 MADE WITH THREE PLANES:
 VERTICAL/FRONTAL
 HORIZONTAL
 PROFILE
 PICTORIAL DRAWING IS THE 3D SHAPE
USED WHEN CREATING TECHNICAL
DRAWINGS

6. ANGLES OF PROJECTION
 VERTICAL AND HORIZONTAL PLANES DIVIDE THE SPACE
INTO 4 QUADRANTS
 FIRST ANGLE PROJECTION: USED IN EUROPEAN
COUNTRIES
 THIRD ANGLE PROJECTION: USED IN THE U.S. AND
CANADA
 FRONT VIEW IS PROJECTED ONTO THE VERTICAL PLANE
 TOP VIEW IS PROJECTED ONTO THE HORIZONTAL PLANE
 RIGHT-SIDE VIEW IS PROJECTED ONTO THE PROFILE PLANE

7. DECIDING WHICH VIEWS TO USE
 FRONT VIEW IS TYPICALLY THE ONE THAT SHOWS THE MOST
CHARACTERISTICS OR IS THE LONGEST VIEW– ONLY CHOSEN
VIEW
 TOP AND RIGHT-SIDE VIEWS ARE DRAWN BASED ON THE
NORMAL POSITION TO THE FRONT VIEW

8. NUMBER OF VIEWS TO DRAW
 WHEN AN OBJECT HAS A UNIFORM THICKNESS ONLY ONE
VIEW IS NEEDED
 AN OBJECT CAN BE SHOWN IN TWO VIEWS WHEN THE THIRD
VIEW WOULD ADD NOTHING TO THE DESCRIPTION
 WHICH VIEWS ARE
NEEDED FOR A?
 FRONT AND SIDE
 WHICH VIEWS ARE
NEEDED FOR B?
 FRONT AND SIDE
 WHICH VIEWS ARE
NEEDED FOR C?
 FRONT AND TOP
 WHICH VIEWS ARE
NEEDED FOR E?
 FRONT AND ??

9. CURVED SURFACES
 CYLINDERS AND CONES DO NOT SHOW CURVES IN ALL
VIEWS
 THEY APPEAR AS CIRCLES IN ONE VIEW AND STRAIGHT
LINES IN ANOTHER
 CYLINDER APPEARS AS A CIRCLE IN ONE VIEW AND A
RECTANGLE IN ANOTHER
 CONE APPEARS AS A CIRCLE IN ONE VIEW AND A TRIANGLE IN
ANOTHER
 ANY OBJECT WITH A SPHERE WILL HAVE CIRCLES IN ALL
VIEWS

10. HIDDEN LINES
 NARROW, SHORT DASHED LINES DRAWN WITH 0.5MM F
PENCIL
 1/8 DASH, 1/32 GAP
 SHOWS THE OUTLINE OF A FEATURE THAT CAN NOT BE SEEN
IN A PARTICULAR VIEW
 WHAT DO YOU NOTICE ABOUT
THE CENTER LINES IN THE
FRONT AND TOP VIEWS THAT
IS DIFFERENT THAN WHAT WE
TYPICALLY DO WITH
DRAWINGS?

11. DIMENSIONING
 DIMENSIONING COMMUNICATES SHAPE AND SIZE IN A
CLEAR AND ACCURATE FASHION
 EACH FEATURE OF AN OBJECT IS ONLY DIMENSIONED
ONCE
 SHOULD BE PLACED IN THE MOST DESCRIPTIVE VIEW OF
THE FEATURE BEING DIMENSIONED
 (DO NOT DIMENSION HIDDEN LINES)

12. MULTIVIEW PRACTICE – GETTING
STARTED
FRONT
TOP
RIGHT
1) DETERMINE FRONT
VIEW
2) SKETCH OUT FRONT
VIEW
3) PROJECT WIDTH
AND LINES TO TOP
VIEW
4) DETERMINE DEPTH
FOR TOP VIEW
5) PROJECT HEIGHT
AND LINES TO RIGHT
SIDE VIEW
6) DRAW MITER LINE
7) PROJECT DEPTH TO
MITER LINE
8) PROJECT DEPTH TO
RIGHT SIDE VIEW

13. MULTIVIEW PRACTICE #1

14. MULTIVIEW PRACTICE #1 -
ANSWER

15. MULTIVIEW PRACTICE #2

16. MULTIVIEW PRACTICE #2 -
ANSWER

17. MULTIVIEW PRACTICE #3
 HOW WOULD A HOLE BE INDICATED ON THE TOP AND
RIGHT SIDE VIEWS THAT IS SHOWN IN THE FRONT VIEW AS
A CIRCLE?
 INCLUDE CENTER LINES

18. MULTIVIEW PRACTICE #3 -
ANSWER
 HOW WOULD A HOLE BE INDICATED ON THE TOP AND
RIGHT SIDE VIEWS THAT IS SHOWN IN THE FRONT VIEW AS
A CIRCLE?
 INCLUDE HIDDEN LINES ON TWO VIEWS
 INCLUDE CENTER LINES ON ALL VIEWS

19. MULTIVIEW PRACTICE #4

20. MULTIVIEW PRACTICE #4 -
ANSWER

21. QUIZ
1) WHICH VIEWS ARE MOST OFTEN USED TO
DESCRIBE AN OBJECT IN A TECHNICAL DRAWING,
ALSO REFERRED TO AS THE NORMAL VIEWS?
A) FRONT, REAR AND RIGHT-SIDE
B) FRONT, TOP AND LEFT-SIDE
C) FRONT, TOP AND RIGHT-SIDE
D) 3D VIEW

22. QUIZ
2) WHICH VIEW SHOWS THE WIDTH AND HEIGHT
OF AN OBJECT?
A) FRONT
B) LEFT
C) RIGHT
D) TOP

23. QUIZ
3) THE VIEWS THAT MAKE UP MULTIVIEW
DRAWINGS ARE DEVELOPED THROUGH
_______________ PROJECTION?
A) ORTHOGRAPHIC
B) PHOTOGRAPHIC
C) PICTORIAL
D) TECHNICAL

24. QUIZ
CREATE A MULTIVIEW DRAWING OF THE SHAPE
BELOW:

25. LEVEL OF UNDERSTANDING: 1, 2, 3
AT THE BOTTOM OF YOUR NOTES
PAGE, ON THE BACK, CIRCLE
WHETHER YOU BELIEVE YOU ARE A
1, 2 OR 3
1: I NEED HELP OR I AM STILL
STRUGGLING TO UNDERSTAND
2: I GET IT/MOSTLY UNDERSTAND
3: I GET IT, LETS MOVE ON TO
SOMETHING MORE CHALLENGING

26. MULTIVIEW GROUP ACTIVITY
 THERE WILL BE THREE DIFFERENT GROUPS:
 STUDENTS WHO NEED ASSISTANCE (1)
 STUDENTS WHO UNDERSTAND (2)
 STUDENTS WHO ARE READY TO MOVE ON TO HARDER ASSIGNMENTS
(3)
 EACH GROUP WILL BE GIVEN A BOX FULL OF 3D SHAPES
 GROUPS 2 AND 3: WILL BEGIN CREATING MULTIVIEW DRAWINGS
BASED ON THOSE SHAPES IMMEDIATELY AFTER GETTING IN TO
GROUPS
 GROUP 1: I WILL MEET WITH YOU AND PROVIDE INSTRUCTION ON
YOUR ACTIVITY. YOU WILL HAVE A REFERENCE SHEET AND COLOR
CODING OF VIEWS ON SHAPES.
 GROUP 3: AFTER MEETING WITH GROUP 1, I WILL COME AND SHOW
YOU HOW TO CREATE ISOMETRIC DRAWINGS OF THE 3D SHAPES
 GROUP 2: AFTER MEETING WITH GROUP 2, I WILL MAKE SURE YOU
ARE GOOD WITH YOUR ACTIVITY AND SHAPES.

27. TECHNICAL SKETCHES ON GRID
PAPER EXAMPLE