1. Build a Frame. The frame is the overall border size in which the sketch fits. It is drawn with light, thin lines.

2. Block in the overall sizes for each detail. These sub-blocks or frames enclose each detail. They are drawn using light, thin lines. 

3. Add in the details. Lightly sketch the shapes of the details in each of their frames. These details are drawn using light, thin lines. 

4. Darken in the lines. Using a soft lead pencil, draw:

Thick black lines to represent all object lines;

Thin black lines to represent all centre lines, hidden lines, and leaders for notes;

Add any necessary notes. The grid acts as a guideline to help produce neat, uniform lettering.

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