Isometric Circles

1

Graphic Communication
Isometric Introduction
CDT Department
2
Isometric Views with Circles and Curves

• Isometric Views are one of the forms of 3D views
  that you need to know about in the Standard Grade
  Graphic Communication course.
• This type of drawing shows the length, breadth,
  and height of the object being drawn.
• An isometric is drawn with a corner closest to
  the viewer.
• All vertical lines and all lines angled back at
  30º can be measured accurately. No other lines
  on Isometric views can be measured.

3
Isometric Views with Circles and Curves

• If you are sitting an SQA Credit paper in Graphic
  Communication, you will be required to know how
  to draw isometric views with curves.
• This type of drawing is always included in the
  final paper each year.
• The table on the following slide shows when each
  type of drawing was used and how many marks were
  allocated to it.
• You will need to know how to draw full and part
  circles and also sloping edges and surfaces.
• The ability to be able to answer questions about
  isometrics will be a great help in letting you
  reach the pass mark in the Credit exam paper.
• If you are sitting the General paper you will
  need to know how to draw Isometric Views,
  although they will not normally include curves
  and circles, but will include sloping edges and
  surfaces.

4
Isometric Views Credit Paper
YEAR Subject NUMBER OF FULL CIRCLES NUMBER OF PART CIRCLES TOTAL MARKS FOR QUESTION of DA mark available
1991 Electronic Game Salt Dish (sect) 0 0 4 0 15 12 21 17
1992 Disc Box (exploded) 0 0 18 26
1993 CD Player 1 1 18 26
1994 Staple Gun 0 2 14 20
1995 Torch 1 0 15 21
1996 Putting Aid 0 1 18 26
1997 CD Player 1 1 18 26
1998 Label Machine 1 0 16 23
1999 Slide Projector 1 0 18 26
2000 Speakers 1 1 16 23
2001 Bathroom scales 1 1 16 23
2002 Coffee maker 1 1 16 23
5
Isometric Views - General
YEAR SUBJECT EXPLODED TOTAL MARKS FOR QUESTION of DA mark available
1991 Fireplace Prism - Box (sketch) Yes No 12 8 17 11
1992 Bracket No 10 14
1993 Plant Pot Holder Yes 16 22
1994
1995
1996 Torch Yes 15 21
1997 Box Yes 12 17
1998 Plant Pot Stand (exploded) Yes 16 22
1999
2000 Burglar Alarm No 8 11
2001
2002
6
(No Transcript)