MEC 1011 - Design Communication I
the end of our ‘Lecture’ meeting in Week 4
All items drawn with pencil on 8 ½ x 11 paper
- Sketch the design of the part(s) that satisfy
the part drawing requirements below. Sketch freehand using any combination
of orthographic or isometric views. Include a title at the top, some
reference to size, material, how it will work and how it will be made.
Include your name, signature and the date.
- Produce enough complete part drawings to
demonstrate the use of various special views including: section (p. 146,
492) auxiliary (p. 148, 490) detail, and broken. Also, produce an example
of a multi-sheet drawing. If you can accomplish all that with one part,
that’s fine. Use rectangular graph paper and include all necessary
views (at the maximum convenient scale in ‘blocks’ – not
a measured scale). Also include projection and ‘fold’ lines
(lightly), dimensions (p. 139, 500 and see rules in Figure 12.48),
tolerances (see p 514 and demonstrate bilateral, unilateral, limit,
geometric and decimal place tolerancing), title block (see Figure 12.35),
border, and pertinent notes.
1. Keep it simple!
To determine the maximum convenient scale, lay out a plan for your
view(s) as though your object(s) was a simple rectangular block (see Figure
3.17 for iso or Figure 4.27 for ortho). You might even consider sketching a
rough draft of each drawing to make sure you have accounted for dimensions etc.