OF DRAFTING AND SHOP DRAWINGS - OD1641 - LESSON 1/TASK 3
ISOMETRIC DRAWING PROBLEM.
Figure 39 (on the following page) is the solution to figure 38 and was derived by
the following procedures:
Make, to the best of your ability, a freehand sketch of the solution.
Remember that since it is easier to make corrections and changes on a sketch than
on a drawing, you should make your sketch as complete and accurate as possible
(figure 39, view A).
Step 2. Using very light lines, lay out a rectangular box whose height, width, and
length correspond to the height, width, and length given in the orthographic views
Step 3. Again, using very light lines, lay out the specific shape of the object.
Transfer dimensional values directly from the orthographic views to the axis, or
lines parallel to the axis, of the isometric drawing (views C and D).
Step 4. Erase all excess lines and smudges, carefully check your work, and darken
in all final lines to their proper color and pattern (view E).